Added new options for Flannel interfaces, tested on openSUSE LEAP 15.1

README.md

@@ -9,6 +9,8 @@ This role has been tested on Ansible 2.6.0+ against the following Linux Distribu
 
   - CentOS 7
   - Debian 9
+  - Debian 10
+  - openSUSE Leap 15
   - Ubuntu 18.04 LTS
 
 ## Disclaimer
@@ -33,6 +35,7 @@ consistency.
 | `k3s_install_dir`              | Installation directory for k3s.                                          | `/usr/local/bin`               |
 | `k3s_control_workers`          | Are control hosts also workers?                                          | `true`                         |
 | `k3s_ensure_docker_installed ` | Use Docker rather than Containerd?                                       | `false`                        |
+| `k3s_no_flannel`               | Do not use Flannel                                                       | `false`                        |
 
 #### Important note about `k3s_release_version`
 
@@ -48,9 +51,10 @@ k3s_release_version: v0.2.0
 
 Below are variables that are set against specific hosts in your inventory.
 
-| Variable           | Description                                            | Default Value |
-|--------------------|--------------------------------------------------------|---------------|
-| `k3s_control_node` | Define the host as a control plane node, (True/False). | `false`       |
+| Variable                | Description                                            | Default Value |
+|-------------------------|--------------------------------------------------------|---------------|
+| `k3s_control_node`      | Define the host as a control plane node, (True/False). | `false`       |
+| `k3s_flannel_interface` | Define the flannel proxy interface for this node.      |               |
 
 #### Important note about `k3s_control_node`
 
@@ -60,6 +64,12 @@ set to true the play will fail.
 If you do not set a host as a control node, the role will automatically delegate
 the first play host as a control node.
 
+#### Important note about `k3s_flannel_interface`
+
+If you are running k3s on systems with multiple network interfaces, it is
+necessary to have the flannel interface on a network interface that is routable
+to the master node(s).
+
 ## Dependencies
 
 No dependencies on other roles.

defaults/main.yml

@@ -15,3 +15,6 @@ k3s_control_workers: true
 
 # Ensure Docker is installed on nodes
 k3s_ensure_docker_installed: false
+
+# Disable flannel
+k3s_no_flannel: false

meta/main.yml

@@ -43,6 +43,9 @@ galaxy_info:
         - buster
         - jessie
         - stretch
+    - name: SLES
+      versions:
+        - 15
     - name: Ubuntu
       versions:
         - xenial
@@ -56,6 +59,7 @@ galaxy_info:
     - containerd
     - cluster
     - rancher
+    - lightweight
     # List tags for your role here, one per line. A tag is a keyword that describes
     # and categorizes the role. Users find roles by searching for tags. Be sure to
     # remove the '[]' above, if you add tags to this list.

templates/k3s.service.j2

@@ -8,9 +8,9 @@ Type=notify
 ExecStartPre=-/sbin/modprobe br_netfilter
 ExecStartPre=-/sbin/modprobe overlay
 {% if k3s_control_node %}
-ExecStart={{ k3s_install_dir }}/k3s server{{ ' --disable-agent' if not k3s_control_workers else '' }}{{ ' --docker' if k3s_ensure_docker_installed else '' }}
+ExecStart={{ k3s_install_dir }}/k3s server{{ ' --disable-agent' if not k3s_control_workers else '' }}{{ ' --flannel-iface ' + k3s_flannel_interface if k3s_flannel_interface is defined and not k3s_no_flannel else '' }}{{ ' --no-flannel' if k3s_no_flannel else '' }}{{ ' --docker' if k3s_ensure_docker_installed else '' }}
 {% else %}
-ExecStart={{ k3s_install_dir }}/k3s agent{{ ' --docker' if k3s_ensure_docker_installed else '' }} --server https://{{ k3s_control_node_address }}:6443 --token {{ k3s_control_token.content | b64decode }}
+ExecStart={{ k3s_install_dir }}/k3s agent{{ ' --docker' if k3s_ensure_docker_installed else '' }}{{ ' --flannel-iface ' + k3s_flannel_interface if k3s_flannel_interface is defined and not k3s_no_flannel else '' }}{{ ' --no-flannel' if k3s_no_flannel else '' }} --server https://{{ k3s_control_node_address }}:6443 --token {{ k3s_control_token.content | b64decode }}
 {% endif %}
 KillMode=process
 Delegate=yes

tests/Vagrantfile

@@ -26,6 +26,18 @@ else
 fi
 SCRIPT
 
+$opensuse_provision = <<SCRIPT
+if [ ! -f .vagrant_provision ] ; then
+    echo "Installing dependencies ..."
+    sudo zypper refresh > /dev/null 2>&1 && echo "[OK] Update Zypper cache."
+    sudo zypper install -y python > /dev/null 2>&1 && \
+        echo "[OK] Installing Python."
+    touch .vagrant_provision
+else
+    echo "Already Provisioned."
+fi
+SCRIPT
+
 VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
@@ -52,20 +64,33 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   end
 
   config.vm.define "node3" do |node3|
-    node3.vm.box = "ubuntu/bionic64"
+    node3.vm.box = "bento/opensuse-leap-15.1"
     node3.vm.hostname = "k3s-node03"
     node3.vm.network "private_network", ip: "172.16.3.32"
+    node3.vm.synced_folder ".", "/vagrant", disabled: true
+
     node3.vm.provider "virtualbox" do |vb|
       vb.name = "k3s - node3"
       vb.memory = 512
     end
-    node3.vm.provision "shell", inline: $debian_provision
-    node3.vm.provision "ansible" do |a|
+    node3.vm.provision "shell", inline: $opensuse_provision
+  end
+
+  config.vm.define "node4" do |node4|
+    node4.vm.box = "ubuntu/bionic64"
+    node4.vm.hostname = "k3s-node04"
+    node4.vm.network "private_network", ip: "172.16.3.33"
+    node4.vm.provider "virtualbox" do |vb|
+      vb.name = "k3s - node4"
+      vb.memory = 512
+    end
+    node4.vm.provision "shell", inline: $debian_provision
+    node4.vm.provision "ansible" do |a|
       a.limit = "all"
       a.config_file = "ansible.cfg"
       a.inventory_path = "inventory.yml"
       a.playbook = "test.yml"
-      a.verbose = "v"
+      a.verbose = "vv"
     end
   end
 end

tests/inventory.yml

@@ -10,13 +10,22 @@ k3s_nodes:
       ansible_user: vagrant
       ansible_port: 22
       ansible_ssh_private_key_file: '.vagrant/machines/node1/virtualbox/private_key'
+      k3s_flannel_interface: eth1
     node2:
       ansible_host: 172.16.3.31
       ansible_user: vagrant
       ansible_port: 22
       ansible_ssh_private_key_file: '.vagrant/machines/node2/virtualbox/private_key'
+      k3s_flannel_interface: eth1
     node3:
       ansible_host: 172.16.3.32
       ansible_user: vagrant
       ansible_port: 22
       ansible_ssh_private_key_file: '.vagrant/machines/node3/virtualbox/private_key'
+      k3s_flannel_interface: eth1
+    node4:
+      ansible_host: 172.16.3.33
+      ansible_user: vagrant
+      ansible_port: 22
+      ansible_ssh_private_key_file: '.vagrant/machines/node4/virtualbox/private_key'
+      k3s_flannel_interface: enp0s8