Merge pull request #92 from PyratLabs/feature-systemd_documentation
systemd unit ordering + documentation
This commit is contained in:
Xan Manning
GitHub
commit
05242ba232
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@ -1,4 +1,4 @@
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---
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skip_list:
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- '106'
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- role-name
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13
CHANGELOG.md
13
CHANGELOG.md
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@ -14,6 +14,19 @@
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---
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-->
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## 2021-02-16, v2.6.0
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### Notable changes
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- Tidy up of `when` params and `assert` tasks to be more readable.
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- Added feature to tweak K3S service dependencies.
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- Updated documentation:
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- Node labels and component arguments
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- systemd config
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- Use alternate CNI (Calico example)
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---
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## 2021-01-31, v2.5.3
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### Notable changes
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18
README.md
18
README.md
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@ -71,13 +71,29 @@ consistency. These are generally cluster-level configuration.
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| `k3s_github_url` | Set the GitHub URL to install k3s from. | https://github.com/k3s-io/k3s |
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| `k3s_install_dir` | Installation directory for k3s. | `/usr/local/bin` |
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| `k3s_install_hard_links` | Install using hard links rather than symbolic links. | `false` |
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| `k3s_start_on_boot` | Start k3s on boot. | `true` |
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| `k3s_server_manifests_templates` | A list of Auto-Deploying Manifests Templates. | [] |
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| `k3s_use_experimental` | Allow the use of experimental features in k3s. | `false` |
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| `k3s_use_unsupported_config` | Allow the use of unsupported configurations in k3s. | `false` |
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| `k3s_etcd_datastore` | Enable etcd embedded datastore (read notes below). | `false` |
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| `k3s_debug` | Enable debug logging on the k3s service. | `false` |
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### K3S Service Configuration
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The below variables change how and when the systemd service unit file for K3S
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is run. Use this with caution, please refer to the [systemd documentation](https://www.freedesktop.org/software/systemd/man/systemd.unit.html#%5BUnit%5D%20Section%20Options)
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for more information.
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| Variable | Description | Default Value |
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|------------------------|----------------------------------------------------------------|---------------|
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| `k3s_start_on_boot` | Start k3s on boot. | `true` |
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| `k3s_service_requires` | List of required systemd units to k3s service unit. | [] |
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| `k3s_service_wants` | List of "wanted" systemd unit to k3s (weaker than "requires"). | []\* |
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| `k3s_service_before` | Start k3s before a defined list of systemd units. | [] |
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| `k3s_service_after` | Start k3s after a defined list of systemd units. | []\* |
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\* The systemd unit template **always** specifies `network-online.target` for
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`wants` and `after`.
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### Group/Host Variables
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Below are variables that are set against individual or groups of play hosts.
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@ -35,9 +35,6 @@ k3s_install_dir: /usr/local/bin
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# Install using hard links rather than symbolic links
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k3s_install_hard_links: false
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# Start k3s on system boot
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k3s_start_on_boot: true
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# A list of templates used for preconfigure the cluster.
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k3s_server_manifests_templates: []
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@ -50,6 +47,24 @@ k3s_use_unsupported_config: false
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# Enable etcd embedded datastore
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k3s_etcd_datastore: false
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##
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# Systemd config
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##
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# Start k3s on system boot
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k3s_start_on_boot: true
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# List of required systemd units to k3s service unit.
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k3s_service_requires: []
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# List of "wanted" systemd unit to k3s (weaker than "requires").
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k3s_service_wants: []
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# Start k3s before a defined list of systemd units.
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k3s_service_before: []
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# Start k3s after a defined list of systemd units.
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k3s_service_after: []
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##
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# Server Configuration
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@ -31,6 +31,9 @@ minimum configuration.
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- [Setting up 2-node HA control plane with external datastore](configuration/2-node-ha-ext-datastore.md)
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- [Provision multiple standalone k3s nodes](configuration/multiple-standalone-k3s-nodes.md)
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- [Set node labels and component arguments](configuration/node-labels-and-component-args.md)
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- [Use an alternate CNI](configuration/use-an-alternate-cni.md)
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- [Start K3S after another service](configuration/systemd-config.md)
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### Operations
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@ -64,6 +64,8 @@ https://rancher.com/docs/k3s/latest/en/installation/datastore/#datastore-endpoin
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k3s_server:
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datastore-endpoint: postgres://postgres:verybadpass@database:5432/postgres?sslmode=disable
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node-taint:
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- "k3s-controlplane=true:NoExecute"
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```
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Your worker nodes need to know how to connect to the control plane, this is
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@ -0,0 +1,39 @@
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# Configure node labels and component arguments
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The following command line arguments can be specified multiple times with
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`key=value` pairs:
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- `--kube-kubelet-arg`
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- `--kube-proxy-arg`
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- `--kube-apiserver-arg`
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- `--kube-scheduler-arg`
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- `--kube-controller-manager-arg`
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- `--kube-cloud-controller-manager-arg`
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- `--node-label`
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- `--node-taint`
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In the config file, this is done by defining a list of values for each
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command like argument, for example:
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```yaml
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---
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k3s_server:
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# Set the plugins registry directory
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kubelet-arg:
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- "volume-plugin-dir=/var/lib/rancher/k3s/agent/kubelet/plugins_registry"
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# Set the pod eviction timeout and node monitor grace period
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kube-controller-manager-arg:
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- "pod-eviction-timeout=2m"
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- "node-monitor-grace-period=30s"
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# Set API server feature gate
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kube-apiserver-arg:
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- "feature-gates=RemoveSelfLink=false"
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# Laels to apply to a node
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node-label:
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- "NodeTier=development"
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- "NodeLocation=eu-west-2a"
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# Stop k3s control plane having workloads scheduled on them
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node-taint:
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- "k3s-controlplane=true:NoExecute"
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```
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@ -0,0 +1,19 @@
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# systemd config
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Below are examples to tweak how and when K3S starts up.
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## Wanted service units
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In this example, we're going to start K3S after Wireguard. Our example server
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has a Wireguard connection `wg0`. We are using "wants" rather than "requires"
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as it's a weaker requirement that Wireguard must be running. We then want
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K3S to start after Wireguard has started.
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```yaml
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---
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k3s_service_wants:
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- wg-quick@wg0.service
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k3s_service_after:
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- wg-quick@wg0.service
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```
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@ -0,0 +1,63 @@
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# Use an alternate CNI
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K3S ships with Flannel, however sometimes you want an different CNI such as
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Calico, Canal or Weave Net. To do this you will need to disable Flannel with
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`flannel-backend: "none"`, specify a `cluster-cidr` and add your CNI manifests
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to the `k3s_server_manifests_templates`.
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## Calico example
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The below is based on the
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[Calico quickstart documentation](https://docs.projectcalico.org/getting-started/kubernetes/quickstart).
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Steps:
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1. Download `tigera-operator.yaml` to the manifests directory.
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1. Download `custom-resources.yaml` to the manifests directory.
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1. Choose a `cluster-cidr` (we are using 192.168.0.0/16)
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1. Set `k3s_server` and `k3s_server_manifest_templates` as per the below,
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ensure the paths to manifests are correct for your project repo.
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```yaml
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---
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# K3S Server config, don't deploy flannel and set cluster pod CIDR.
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k3s_server:
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cluster-cidr: 192.168.0.0/16
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flannel-backend: "none"
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# Deploy the following k3s server templates.
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k3s_server_manifests_templates:
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- "manifests/calico/tigera-operator.yaml"
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- "manifests/calico/custom-resources.yaml"
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```
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All nodes should come up as "Ready", below is a 3-node cluster:
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```text
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$ kubectl get nodes -o wide -w
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NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
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kube-0 Ready control-plane,etcd,master 114s v1.20.2+k3s1 10.10.9.2 10.10.9.2 Ubuntu 20.04.1 LTS 5.4.0-56-generic containerd://1.4.3-k3s1
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kube-1 Ready control-plane,etcd,master 80s v1.20.2+k3s1 10.10.9.3 10.10.9.3 Ubuntu 20.04.1 LTS 5.4.0-56-generic containerd://1.4.3-k3s1
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kube-2 Ready control-plane,etcd,master 73s v1.20.2+k3s1 10.10.9.4 10.10.9.4 Ubuntu 20.04.1 LTS 5.4.0-56-generic containerd://1.4.3-k3s1
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```
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Pods should be deployed with deployed within the CIDR specified in our config
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file.
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```text
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$ kubectl get pods -o wide -A
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NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
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calico-system calico-kube-controllers-cfb4ff54b-8rp8r 1/1 Running 0 5m4s 192.168.145.65 kube-0 <none> <none>
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calico-system calico-node-2cm2m 1/1 Running 0 5m4s 10.10.9.2 kube-0 <none> <none>
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calico-system calico-node-2s6lx 1/1 Running 0 4m42s 10.10.9.4 kube-2 <none> <none>
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calico-system calico-node-zwqjz 1/1 Running 0 4m49s 10.10.9.3 kube-1 <none> <none>
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calico-system calico-typha-7b6747d665-78swq 1/1 Running 0 3m5s 10.10.9.4 kube-2 <none> <none>
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calico-system calico-typha-7b6747d665-8ff66 1/1 Running 0 3m5s 10.10.9.3 kube-1 <none> <none>
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calico-system calico-typha-7b6747d665-hgplx 1/1 Running 0 5m5s 10.10.9.2 kube-0 <none> <none>
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kube-system coredns-854c77959c-6qhgt 1/1 Running 0 5m20s 192.168.145.66 kube-0 <none> <none>
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kube-system helm-install-traefik-4czr9 0/1 Completed 0 5m20s 192.168.145.67 kube-0 <none> <none>
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kube-system metrics-server-86cbb8457f-qcxf5 1/1 Running 0 5m20s 192.168.145.68 kube-0 <none> <none>
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kube-system traefik-6f9cbd9bd4-7h4rl 1/1 Running 0 2m50s 192.168.126.65 kube-1 <none> <none>
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tigera-operator tigera-operator-b6c4bfdd9-29hhr 1/1 Running 0 5m20s 10.10.9.2 kube-0 <none> <none>
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```
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@ -86,7 +86,7 @@ Here is our playbook for the k3s cluster (`cluster.yml`):
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vars:
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k3s_become_for_all: true
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roles:
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- xanmanning.k3s
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- role: xanmanning.k3s
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```
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## Execution
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|
|
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@ -94,7 +94,7 @@ Here is our playbook for the k3s cluster (`ha_cluster.yml`):
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k3s_etcd_datastore: true
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k3s_use_experimental: true # Note this is required for k3s < v1.19.5+k3s1
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roles:
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- xanmanning.k3s
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- role: xanmanning.k3s
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```
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## Execution
|
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|
|
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@ -68,7 +68,7 @@ Here is our playbook for a single node k3s cluster (`single_node.yml`):
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vars:
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k3s_become_for_all: true
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roles:
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- xanmanning.k3s
|
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- role: xanmanning.k3s
|
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```
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## Execution
|
||||
|
|
|
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@ -13,4 +13,4 @@
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k3s_server_manifests_templates:
|
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- "molecule/autodeploy/templates/00-ns-monitoring.yml.j2"
|
||||
roles:
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- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
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|
|
|
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|
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@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
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set -e
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||||
yamllint -s .
|
||||
ansible-lint
|
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ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
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|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_install_hard_links: true
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_state: downloaded
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_state: restarted
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -12,4 +12,4 @@
|
|||
rootless: true
|
||||
k3s_install_dir: "/home/{{ ansible_user_id }}/bin"
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_build_cluster: false
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_state: started
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_state: stopped
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -6,4 +6,4 @@
|
|||
molecule_is_test: true
|
||||
k3s_state: uninstalled
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -10,4 +10,4 @@
|
|||
k3s_agent:
|
||||
docker: true
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "${MOLECULE_DISTRO:-geerlingguy/docker-ubuntu2004-ansible:latest}"
|
||||
|
|
|
|||
|
|
@ -14,4 +14,4 @@
|
|||
k3s_control_node: true
|
||||
when: inventory_hostname in ['node2', 'node3']
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
||||
|
|
|
|||
|
|
@ -14,4 +14,4 @@
|
|||
ansible.builtin.set_fact:
|
||||
k3s_control_node: true
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
||||
|
|
|
|||
|
|
@ -7,4 +7,4 @@
|
|||
k3s_server: "{{ lookup('file', 'k3s_server.yml') | from_yaml }}"
|
||||
k3s_agent: "{{ lookup('file', 'k3s_agent.yml') | from_yaml }}"
|
||||
roles:
|
||||
- role: xanmanning.k3s
|
||||
- role: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ driver:
|
|||
lint: |
|
||||
set -e
|
||||
yamllint -s .
|
||||
ansible-lint
|
||||
ansible-lint --exclude molecule/
|
||||
platforms:
|
||||
- name: node1
|
||||
image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
|
||||
|
|
|
|||
|
|
@ -5,7 +5,9 @@
|
|||
path: "{{ k3s_runtime_config['data-dir'] | default(k3s_data_dir) }}/server/token"
|
||||
register: k3s_slurped_cluster_token
|
||||
delegate_to: "{{ k3s_control_delegate }}"
|
||||
when: k3s_control_token is not defined and not ansible_check_mode
|
||||
when:
|
||||
- k3s_control_token is not defined
|
||||
- not ansible_check_mode
|
||||
become: "{{ k3s_become_for_kubectl | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
- name: Ensure cluster token is formatted correctly for use in templates
|
||||
|
|
@ -66,7 +68,9 @@
|
|||
until: ensure_secondary_controllers_started is succeeded
|
||||
retries: "{{ ansible_play_hosts_all | length }}"
|
||||
delay: 5
|
||||
when: k3s_control_node and not k3s_primary_control_node
|
||||
when:
|
||||
- k3s_control_node
|
||||
- not k3s_primary_control_node
|
||||
become: "{{ k3s_become_for_systemd | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
- import_tasks: ../validate/state/control-plane.yml
|
||||
|
|
|
|||
|
|
@ -40,14 +40,16 @@
|
|||
enabled: true
|
||||
gpgcheck: true
|
||||
state: present
|
||||
when: ansible_distribution | lower not in ['amazon']
|
||||
and k3s_redhat_repo_check.status == 200
|
||||
when:
|
||||
- ansible_distribution | lower not in ['amazon']
|
||||
- k3s_redhat_repo_check.status == 200
|
||||
become: "{{ k3s_become_for_package_install | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
- name: Ensure Docker repository is installed and configured from file
|
||||
ansible.builtin.command: yum-config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
|
||||
args:
|
||||
creates: /etc/yum.repos.d/docker-ce.repo
|
||||
when: ansible_distribution | lower not in ['amazon']
|
||||
and k3s_redhat_repo_check.status != 200
|
||||
when:
|
||||
- ansible_distribution | lower not in ['amazon']
|
||||
- k3s_redhat_repo_check.status != 200
|
||||
become: "{{ k3s_become_for_package_install | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
ansible.builtin.set_fact:
|
||||
k3s_systemd_context: user
|
||||
k3s_systemd_unit_dir: "{{ ansible_user_dir }}/.config/systemd/user"
|
||||
when: k3s_runtime_config is defined
|
||||
and "rootless" in k3s_runtime_config
|
||||
and k3s_runtime_config.rootless
|
||||
when:
|
||||
- k3s_runtime_config is defined
|
||||
- k3s_runtime_config.rootless is defined
|
||||
- k3s_runtime_config.rootless
|
||||
|
|
|
|||
|
|
@ -4,7 +4,9 @@
|
|||
ansible.builtin.set_fact:
|
||||
k3s_release_version: "{{ k3s_release_channel }}"
|
||||
check_mode: false
|
||||
when: k3s_release_version is defined and not k3s_release_version
|
||||
when:
|
||||
- k3s_release_version is defined
|
||||
- not k3s_release_version
|
||||
|
||||
- name: Ensure the default release channel is set
|
||||
ansible.builtin.set_fact:
|
||||
|
|
@ -24,5 +26,6 @@
|
|||
k3s_release_version: "{{ item.latest }}"
|
||||
loop: "{{ k3s_latest_release.json.data }}"
|
||||
check_mode: false
|
||||
when: item.name == k3s_release_channel
|
||||
and item.type == "channel"
|
||||
when:
|
||||
- item.name == k3s_release_channel
|
||||
- item.type == "channel"
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@
|
|||
state: directory
|
||||
mode: "{{ directory.mode | default(0755) }}"
|
||||
become: "{{ k3s_become_for_directory_creation | ternary(true, false, k3s_become_for_all) }}"
|
||||
when: directory.path is defined
|
||||
and directory.path | length > 0
|
||||
and directory.path != omit
|
||||
when:
|
||||
- directory.path is defined
|
||||
- directory.path | length > 0
|
||||
- directory.path != omit
|
||||
|
|
|
|||
|
|
@ -43,9 +43,9 @@
|
|||
dest: "/usr/local/bin/k3s-killall.sh"
|
||||
mode: 0700
|
||||
become: "{{ k3s_become_for_usr_local_bin | ternary(true, false, k3s_become_for_all) }}"
|
||||
when: k3s_runtime_config is defined
|
||||
and ("rootless" not in k3s_runtime_config
|
||||
or not k3s_runtime_config.rootless)
|
||||
when:
|
||||
- k3s_runtime_config is defined
|
||||
- ("rootless" not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
|
||||
- name: Ensure k3s uninstall script is present
|
||||
ansible.builtin.template:
|
||||
|
|
@ -53,6 +53,6 @@
|
|||
dest: "/usr/local/bin/k3s-uninstall.sh"
|
||||
mode: 0700
|
||||
become: "{{ k3s_become_for_usr_local_bin | ternary(true, false, k3s_become_for_all) }}"
|
||||
when: k3s_runtime_config is defined
|
||||
and ("rootless" not in k3s_runtime_config
|
||||
or not k3s_runtime_config.rootless)
|
||||
when:
|
||||
- k3s_runtime_config is defined
|
||||
- ("rootless" not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
|
|
|
|||
|
|
@ -6,8 +6,10 @@
|
|||
loop_var: directory
|
||||
|
||||
- include_tasks: install-k3s-node.yml
|
||||
when: ((k3s_control_node and k3s_controller_list | length == 1)
|
||||
or (k3s_primary_control_node and k3s_controller_list | length > 1)) and not ansible_check_mode
|
||||
when:
|
||||
- ((k3s_control_node and k3s_controller_list | length == 1)
|
||||
or (k3s_primary_control_node and k3s_controller_list | length > 1))
|
||||
- not ansible_check_mode
|
||||
|
||||
- meta: flush_handlers
|
||||
|
||||
|
|
|
|||
|
|
@ -3,8 +3,9 @@
|
|||
- name: Ensure k3s_build_cluster is false if running against a single node.
|
||||
ansible.builtin.set_fact:
|
||||
k3s_build_cluster: false
|
||||
when: ansible_play_hosts_all | length < 2
|
||||
and k3s_control_node_address is not defined
|
||||
when:
|
||||
- ansible_play_hosts_all | length < 2
|
||||
- k3s_control_node_address is not defined
|
||||
|
||||
- name: Ensure k3s control node fact is set
|
||||
ansible.builtin.set_fact:
|
||||
|
|
@ -24,8 +25,9 @@
|
|||
- name: Ensure a count of control nodes is generated
|
||||
ansible.builtin.set_fact:
|
||||
k3s_controller_list: "{{ k3s_controller_list + [ item ] }}"
|
||||
when: hostvars[item].k3s_control_node is defined
|
||||
and hostvars[item].k3s_control_node
|
||||
when:
|
||||
- hostvars[item].k3s_control_node is defined
|
||||
- hostvars[item].k3s_control_node
|
||||
loop: "{{ ansible_play_hosts_all }}"
|
||||
|
||||
- name: Ensure a k3s control node is defined if none are found in ansible_play_hosts_all
|
||||
|
|
@ -39,20 +41,25 @@
|
|||
- name: Ensure a count of control nodes is generated
|
||||
ansible.builtin.set_fact:
|
||||
k3s_controller_list: "{{ k3s_controller_list + [ item ] }}"
|
||||
when: hostvars[item].k3s_control_node is defined
|
||||
and hostvars[item].k3s_control_node
|
||||
when:
|
||||
- hostvars[item].k3s_control_node is defined
|
||||
- hostvars[item].k3s_control_node
|
||||
loop: "{{ ansible_play_hosts_all }}"
|
||||
|
||||
when: k3s_controller_list | length < 1
|
||||
and k3s_build_cluster is defined and k3s_build_cluster
|
||||
when:
|
||||
- k3s_controller_list | length < 1
|
||||
- k3s_build_cluster is defined
|
||||
- k3s_build_cluster
|
||||
|
||||
- name: Ensure a primary k3s control node is defined if multiple are found in ansible_play_hosts_all
|
||||
ansible.builtin.set_fact:
|
||||
k3s_primary_control_node: true
|
||||
when: k3s_controller_list is defined
|
||||
and k3s_controller_list | length > 1
|
||||
and inventory_hostname == k3s_controller_list[0]
|
||||
and k3s_build_cluster is defined and k3s_build_cluster
|
||||
when:
|
||||
- k3s_controller_list is defined
|
||||
- k3s_controller_list | length > 1
|
||||
- inventory_hostname == k3s_controller_list[0]
|
||||
- k3s_build_cluster is defined
|
||||
- k3s_build_cluster
|
||||
|
||||
- name: Ensure ansible_host is mapped to inventory_hostname
|
||||
ansible.builtin.lineinfile:
|
||||
|
|
@ -98,11 +105,13 @@
|
|||
- name: Ensure k3s_runtime_config is set for control plane
|
||||
ansible.builtin.set_fact:
|
||||
k3s_runtime_config: "{{ (k3s_server | default({})) | combine((k3s_agent | default({}))) }}"
|
||||
when: (k3s_server is defined or k3s_agent is defined)
|
||||
and (k3s_control_node is defined and k3s_control_node)
|
||||
when:
|
||||
- (k3s_server is defined or k3s_agent is defined)
|
||||
- (k3s_control_node is defined and k3s_control_node)
|
||||
|
||||
- name: Ensure k3s_runtime_config is set for agents
|
||||
ansible.builtin.set_fact:
|
||||
k3s_runtime_config: "{{ (k3s_agent | default({})) }}"
|
||||
when: k3s_agent is defined
|
||||
and (k3s_control_node is not defined or not k3s_control_node)
|
||||
when:
|
||||
- k3s_agent is defined
|
||||
- (k3s_control_node is not defined or not k3s_control_node)
|
||||
|
|
|
|||
|
|
@ -14,5 +14,7 @@
|
|||
state: started
|
||||
enabled: "{{ k3s_start_on_boot }}"
|
||||
scope: user
|
||||
when: k3s_non_root is defined and k3s_non_root
|
||||
when:
|
||||
- k3s_non_root is defined
|
||||
- k3s_non_root
|
||||
become: "{{ k3s_become_for_systemd | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
|
|
|||
|
|
@ -14,5 +14,7 @@
|
|||
state: stopped
|
||||
enabled: "{{ k3s_start_on_boot }}"
|
||||
scope: user
|
||||
when: k3s_non_root is defined and k3s_non_root
|
||||
when:
|
||||
- k3s_non_root is defined
|
||||
- k3s_non_root
|
||||
become: "{{ k3s_become_for_systemd | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
|
|
|||
|
|
@ -25,19 +25,23 @@
|
|||
- include_tasks: build/docker/{{ ansible_distribution | replace(" ", "-") | lower }}/install.yml
|
||||
when: ansible_distribution | replace(" ", "-") | lower in ['amazon', 'suse', 'opensuse-leap', 'archlinux']
|
||||
|
||||
when: ('docker' in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
and ('rootless' not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
when:
|
||||
- ('docker' in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
- ('rootless' not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
|
||||
- meta: flush_handlers
|
||||
|
||||
- import_tasks: build/download-k3s.yml
|
||||
|
||||
- import_tasks: build/preconfigure-k3s-auto-deploying-manifests.yml
|
||||
when: k3s_control_node
|
||||
and k3s_server_manifests_templates | length > 0
|
||||
when:
|
||||
- k3s_control_node
|
||||
- k3s_server_manifests_templates | length > 0
|
||||
|
||||
- import_tasks: build/install-k3s.yml
|
||||
|
||||
- import_tasks: build/configure-k3s-cluster.yml
|
||||
when: k3s_build_cluster is defined and k3s_build_cluster
|
||||
and k3s_control_node_address is defined
|
||||
when:
|
||||
- k3s_build_cluster is defined
|
||||
- k3s_build_cluster
|
||||
- k3s_control_node_address is defined
|
||||
|
|
|
|||
|
|
@ -17,8 +17,9 @@
|
|||
|
||||
- include_tasks: teardown/docker/{{ ansible_os_family | lower }}/uninstall-prerequisites.yml
|
||||
|
||||
when: ('docker' in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
and ('rootless' not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
when:
|
||||
- ('docker' in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
- ('rootless' not in k3s_runtime_config or not k3s_runtime_config.rootless)
|
||||
|
||||
- import_tasks: validate/state/uninstalled.yml
|
||||
when: not k3s_skip_validation
|
||||
|
|
|
|||
|
|
@ -22,9 +22,10 @@
|
|||
ansible.builtin.command: "{{ k3s_install_dir }}/kubectl drain {{ item }} --ignore-daemonsets --delete-local-data"
|
||||
delegate_to: "{{ k3s_control_delegate }}"
|
||||
run_once: true
|
||||
when: item in kubectl_get_nodes_result.stdout
|
||||
and hostvars[item].k3s_state is defined
|
||||
and hostvars[item].k3s_state == 'uninstalled'
|
||||
when:
|
||||
- item in kubectl_get_nodes_result.stdout
|
||||
- hostvars[item].k3s_state is defined
|
||||
- hostvars[item].k3s_state == 'uninstalled'
|
||||
loop: "{{ ansible_play_hosts_all }}"
|
||||
become: "{{ k3s_become_for_kubectl | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
|
|
@ -32,13 +33,15 @@
|
|||
ansible.builtin.command: "{{ k3s_install_dir }}/kubectl delete node {{ item }}"
|
||||
delegate_to: "{{ k3s_control_delegate }}"
|
||||
run_once: true
|
||||
when: item in kubectl_get_nodes_result.stdout
|
||||
and hostvars[item].k3s_state is defined
|
||||
and hostvars[item].k3s_state == 'uninstalled'
|
||||
when:
|
||||
- item in kubectl_get_nodes_result.stdout
|
||||
- hostvars[item].k3s_state is defined
|
||||
- hostvars[item].k3s_state == 'uninstalled'
|
||||
loop: "{{ ansible_play_hosts_all }}"
|
||||
become: "{{ k3s_become_for_kubectl | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
when: k3s_check_kubectl.stat.exists is defined
|
||||
and k3s_check_kubectl.stat.exists
|
||||
and k3s_control_delegate is defined
|
||||
and not ansible_check_mode
|
||||
when:
|
||||
- k3s_check_kubectl.stat.exists is defined
|
||||
- k3s_check_kubectl.stat.exists
|
||||
- k3s_control_delegate is defined
|
||||
- not ansible_check_mode
|
||||
|
|
|
|||
|
|
@ -40,11 +40,13 @@
|
|||
- kubectl
|
||||
- crictl
|
||||
- ctr
|
||||
when: k3s_install_hard_links
|
||||
and not ansible_check_mode
|
||||
when:
|
||||
- k3s_install_hard_links
|
||||
- not ansible_check_mode
|
||||
become: "{{ k3s_become_for_uninstall | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
||||
- name: Clean up Docker
|
||||
ansible.builtin.command: docker system prune -a --force
|
||||
when: ("docker" in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
and check_k3s_docker_path.rc == 0
|
||||
when:
|
||||
- ("docker" in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
- check_k3s_docker_path.rc == 0
|
||||
|
|
|
|||
|
|
@ -4,33 +4,36 @@
|
|||
ansible.builtin.assert:
|
||||
that:
|
||||
- (k3s_controller_list | length == 1)
|
||||
and ("datastore-endpoint" not in k3s_runtime_config or not k3s_runtime_config['datastore-endpoint'])
|
||||
and (k3s_etcd_datastore is not defined or not k3s_etcd_datastore)
|
||||
- ("datastore-endpoint" not in k3s_runtime_config or not k3s_runtime_config['datastore-endpoint'])
|
||||
- (k3s_etcd_datastore is not defined or not k3s_etcd_datastore)
|
||||
success_msg: "Control plane configuration is valid."
|
||||
fail_msg: "Control plane configuration is invalid. Please see notes about k3s_control_node and HA in README.md."
|
||||
when: k3s_controller_list | length == 1
|
||||
and not k3s_use_unsupported_config
|
||||
and k3s_control_node
|
||||
when:
|
||||
- k3s_controller_list | length == 1
|
||||
- not k3s_use_unsupported_config
|
||||
- k3s_control_node
|
||||
|
||||
- name: Check the conditions when multiple controllers are defined
|
||||
ansible.builtin.assert:
|
||||
that:
|
||||
- (k3s_controller_list | length >= 2)
|
||||
and (("datastore-endpoint" in k3s_runtime_config and k3s_runtime_config['datastore-endpoint'])
|
||||
or (k3s_etcd_datastore is defined and k3s_etcd_datastore))
|
||||
- (("datastore-endpoint" in k3s_runtime_config and k3s_runtime_config['datastore-endpoint'])
|
||||
or (k3s_etcd_datastore is defined and k3s_etcd_datastore))
|
||||
success_msg: "Control plane configuration is valid."
|
||||
fail_msg: "Control plane configuration is invalid. Please see notes about k3s_control_node and HA in README.md."
|
||||
when: k3s_controller_list | length >= 2
|
||||
and k3s_control_node
|
||||
when:
|
||||
- k3s_controller_list | length >= 2
|
||||
- k3s_control_node
|
||||
|
||||
- name: Check the conditions when embedded etcd is defined
|
||||
ansible.builtin.assert:
|
||||
that:
|
||||
- (k3s_controller_list | length >= 3)
|
||||
and (((k3s_controller_list | length) % 2) == 1)
|
||||
- (((k3s_controller_list | length) % 2) == 1)
|
||||
success_msg: "Control plane configuration is valid."
|
||||
fail_msg: "Etcd should have a minimum of 3 defined members and the number of members should be odd. Please see notes about HA in README.md"
|
||||
when: k3s_etcd_datastore is defined
|
||||
and k3s_etcd_datastore
|
||||
and not k3s_use_unsupported_config
|
||||
and k3s_control_node
|
||||
when:
|
||||
- k3s_etcd_datastore is defined
|
||||
- k3s_etcd_datastore
|
||||
- not k3s_use_unsupported_config
|
||||
- k3s_control_node
|
||||
|
|
|
|||
|
|
@ -8,8 +8,10 @@
|
|||
fail_msg: >-
|
||||
Experimental variable k3s_etcd_datastore has been configured.
|
||||
If you want to use this ensure you set k3s_use_experimental,
|
||||
when: k3s_etcd_datastore is defined and k3s_etcd_datastore
|
||||
and (k3s_release_version | replace('v', '')) is version_compare("1.19.5", '<')
|
||||
when:
|
||||
- k3s_etcd_datastore is defined
|
||||
- k3s_etcd_datastore
|
||||
- (k3s_release_version | replace('v', '')) is version_compare("1.19.5", '<')
|
||||
|
||||
- name: Check if any experimental variables are configure and if they are enabled with k3s_use_experimental
|
||||
ansible.builtin.assert:
|
||||
|
|
@ -23,6 +25,7 @@
|
|||
Documentation: {{ item.documentation }}
|
||||
{% endif %}
|
||||
loop: "{{ k3s_experimental_config }}"
|
||||
when: (item.setting in k3s_runtime_config and k3s_runtime_config[item.setting])
|
||||
and ((item.until is not defined) or
|
||||
(item.until is defined and (k3s_release_version | replace('v', '')) is version_compare(item.until, '<')))
|
||||
when:
|
||||
- (item.setting in k3s_runtime_config and k3s_runtime_config[item.setting])
|
||||
- ((item.until is not defined) or
|
||||
(item.until is defined and (k3s_release_version | replace('v', '')) is version_compare(item.until, '<')))
|
||||
|
|
|
|||
|
|
@ -57,5 +57,6 @@
|
|||
- ansible_env['XDG_RUNTIME_DIR'] is defined
|
||||
- k3s_check_newuidmap_installed.rc == 0
|
||||
success_msg: All kernel parameters passed
|
||||
fail_msg: Kernel parameters are not set correctly, please check
|
||||
https://github.com/rootless-containers/rootlesskit
|
||||
fail_msg: >-
|
||||
Kernel parameters are not set correctly, please check
|
||||
https://github.com/rootless-containers/rootlesskit
|
||||
|
|
|
|||
|
|
@ -33,9 +33,10 @@
|
|||
Documentation: {{ item.documentation }}
|
||||
{% endif %}
|
||||
loop: "{{ k3s_deprecated_config }}"
|
||||
when: (item.when is not defined
|
||||
or (item.when is defined and (k3s_release_version | replace('v', '')) is version_compare(item.when, '>=')))
|
||||
and not k3s_use_unsupported_config
|
||||
when:
|
||||
- (item.when is not defined
|
||||
or (item.when is defined and (k3s_release_version | replace('v', '')) is version_compare(item.when, '>=')))
|
||||
- not k3s_use_unsupported_config
|
||||
|
||||
- name: Check configuration in k3s_server and k3s_agent against release version
|
||||
ansible.builtin.assert:
|
||||
|
|
@ -49,5 +50,6 @@
|
|||
Documentation: {{ item.documentation }}
|
||||
{% endif %}
|
||||
loop: "{{ k3s_config_version_check }}"
|
||||
when: k3s_config_version_check is defined
|
||||
and item.setting in k3s_runtime_config
|
||||
when:
|
||||
- k3s_config_version_check is defined
|
||||
- item.setting in k3s_runtime_config
|
||||
|
|
|
|||
|
|
@ -4,7 +4,9 @@
|
|||
ansible.builtin.assert:
|
||||
that:
|
||||
- ansible_version.string is version_compare(k3s_ansible_min_version, '>=')
|
||||
fail_msg: "Ansible v{{ ansible_version.string }} is not supported by this role. Please install >= v{{ k3s_ansible_min_version }}"
|
||||
fail_msg: >-
|
||||
Ansible v{{ ansible_version.string }} is not supported by this role.
|
||||
Please install >= v{{ k3s_ansible_min_version }}
|
||||
success_msg: "Ansible v{{ ansible_version.string }} is supported."
|
||||
become: false
|
||||
delegate_to: localhost
|
||||
|
|
|
|||
|
|
@ -16,7 +16,8 @@
|
|||
{% if package.documentation is defined %}
|
||||
Documentation: {{ package.documentation }}
|
||||
{% endif %}
|
||||
when: (package.until is not defined
|
||||
or k3s_release_version is version_compare(package.until, '>='))
|
||||
and (package.from is not defined
|
||||
or k3s_release_version is version_compare(package.from, '>='))
|
||||
when:
|
||||
- (package.until is not defined
|
||||
or k3s_release_version is version_compare(package.until, '>='))
|
||||
- (package.from is not defined
|
||||
or k3s_release_version is version_compare(package.from, '>='))
|
||||
|
|
|
|||
|
|
@ -5,8 +5,11 @@
|
|||
- import_tasks: configuration/experimental-variables.yml
|
||||
|
||||
- import_tasks: configuration/unsupported-rootless.yml
|
||||
when: ("rootless" in k3s_runtime_config)
|
||||
and k3s_runtime_config.rootless
|
||||
when:
|
||||
- k3s_runtime_config.rootless is defined
|
||||
- k3s_runtime_config.rootless
|
||||
|
||||
- import_tasks: configuration/control-node-count.yml
|
||||
when: k3s_build_cluster is defined and k3s_build_cluster
|
||||
when:
|
||||
- k3s_build_cluster is defined
|
||||
- k3s_build_cluster
|
||||
|
|
|
|||
|
|
@ -9,15 +9,19 @@
|
|||
when: k3s_state is defined
|
||||
|
||||
- import_tasks: environment/local/packages.yml
|
||||
when: not k3s_skip_validation
|
||||
and not k3s_skip_env_checks
|
||||
when:
|
||||
- not k3s_skip_validation
|
||||
- not k3s_skip_env_checks
|
||||
|
||||
- include_tasks: environment/remote/packages.yml
|
||||
loop: "{{ k3s_check_packages }}"
|
||||
loop_control:
|
||||
loop_var: package
|
||||
when: not k3s_skip_validation
|
||||
and not k3s_skip_env_checks
|
||||
when:
|
||||
- k3s_skip_validation
|
||||
- not k3s_skip_env_checks
|
||||
|
||||
- include_tasks: environment/local/issue-data.yml
|
||||
when: pyratlabs_issue_controller_dump is defined and pyratlabs_issue_controller_dump
|
||||
when:
|
||||
- pyratlabs_issue_controller_dump is defined
|
||||
- pyratlabs_issue_controller_dump
|
||||
|
|
|
|||
|
|
@ -6,12 +6,14 @@
|
|||
failed_when: kubectl_get_nodes_result.stdout.find("was refused") != -1 or
|
||||
kubectl_get_nodes_result.stdout.find("ServiceUnavailable") != -1
|
||||
register: kubectl_get_nodes_result
|
||||
until: kubectl_get_nodes_result.rc == 0
|
||||
and kubectl_get_nodes_result.stdout.find("NotReady") == -1
|
||||
until:
|
||||
- kubectl_get_nodes_result.rc == 0
|
||||
- kubectl_get_nodes_result.stdout.find("NotReady") == -1
|
||||
retries: 30
|
||||
delay: 20
|
||||
when: k3s_control_node
|
||||
and ("flannel-backend" not in k3s_runtime_config
|
||||
or k3s_runtime_config["flannel-backend"] != "none")
|
||||
and not ansible_check_mode
|
||||
when:
|
||||
- k3s_control_node
|
||||
- ("flannel-backend" not in k3s_runtime_config
|
||||
or k3s_runtime_config["flannel-backend"] != "none")
|
||||
- not ansible_check_mode
|
||||
become: "{{ k3s_become_for_kubectl | ternary(true, false, k3s_become_for_all) }}"
|
||||
|
|
|
|||
|
|
@ -16,12 +16,16 @@
|
|||
ignore_errors: true
|
||||
changed_when: false
|
||||
register: check_k3s_docker_process
|
||||
when: ("docker" in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
when:
|
||||
- k3s_runtime_config.docker is defined
|
||||
- k3s_runtime_config.docker
|
||||
|
||||
- name: Fail if docker is still running
|
||||
ansible.builtin.fail:
|
||||
msg: docker is still running, uninstall script failed. Please investigate.
|
||||
when: ("docker" in k3s_runtime_config and k3s_runtime_config.docker)
|
||||
when:
|
||||
- k3s_runtime_config.docker is defined
|
||||
- k3s_runtime_config.docker
|
||||
|
||||
- name: Fail if k3s binaries have not been removed
|
||||
ansible.builtin.stat:
|
||||
|
|
@ -41,7 +45,7 @@
|
|||
|
||||
- name: Fail if k3s-killall.sh script still exists
|
||||
ansible.builtin.fail:
|
||||
msg: k3s-killall.sh is still running, uninstall script failed. Please investigate.
|
||||
msg: k3s-killall.sh still exists, uninstall script failed. Please investigate.
|
||||
when: check_k3s_killall.stat.exists
|
||||
|
||||
- name: Check k3s-uninstall.sh is removed
|
||||
|
|
@ -51,5 +55,5 @@
|
|||
|
||||
- name: Fail if k3s-uninstall.sh script still exists
|
||||
ansible.builtin.fail:
|
||||
msg: k3s-uninstall.sh is still running, uninstall script failed. Please investigate.
|
||||
msg: k3s-uninstall.sh is still exists, uninstall script failed. Please investigate.
|
||||
when: check_k3s_uninstall.stat.exists
|
||||
|
|
|
|||
|
|
@ -1,8 +1,20 @@
|
|||
[Unit]
|
||||
Description=Lightweight Kubernetes
|
||||
Documentation=https://k3s.io
|
||||
{% for requires_unit in k3s_service_requires %}
|
||||
Requires={{ requires_unit }}
|
||||
{% endfor %}
|
||||
Wants=network-online.target
|
||||
{% for wants_unit in k3s_service_wants %}
|
||||
Wants={{ wants_unit }}
|
||||
{% endfor %}
|
||||
{% for before_unit in k3s_service_before %}
|
||||
Before={{ before_unit }}
|
||||
{% endfor %}
|
||||
After=network-online.target
|
||||
{% for after_unit in k3s_service_after %}
|
||||
After={{ after_unit }}
|
||||
{% endfor %}
|
||||
|
||||
[Service]
|
||||
Type={{ 'notify' if k3s_control_node else 'exec' }}
|
||||
|
|
|
|||
Loading…
Reference in New Issue