harbor/tools/migration/db/run.sh

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2016-05-09 08:11:34 +02:00
#!/bin/bash
# Copyright 2017 VMware, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
source $PWD/db/util/mysql.sh
source $PWD/db/util/pgsql.sh
source $PWD/db/util/mysql_pgsql_1_5_0.sh
source $PWD/db/util/alembic.sh
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set -e
ISMYSQL=false
ISPGSQL=false
ISNOTARY=false
ISCLAIR=false
cur_version=""
PGSQL_USR="postgres"
function init {
if [ "$(ls -A /var/lib/mysql)" ]; then
# As after the first success run, the data will be migrated to pgsql,
# the PG_VERSION should be in /var/lib/mysql if user repeats the UP command.
if [ -e '/var/lib/mysql/PG_VERSION' ]; then
ISPGSQL=true
elif [ -d '/var/lib/mysql/mysql' ]; then
ISMYSQL=true
if [ -d '/var/lib/mysql/notaryserver' ]; then
ISNOTARY=true
fi
fi
fi
if [ "$(ls -A /var/lib/postgresql/data)" ]; then
ISPGSQL=true
fi
if [ -d "/clair-db" ]; then
ISCLAIR=true
fi
if [ $ISMYSQL == false ] && [ $ISPGSQL == false ]; then
echo "No database has been mounted for the migration. Use '-v' to set it in 'docker run'."
exit 1
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fi
if [ $ISMYSQL == true ]; then
# as for UP notary, user does not need to provide username and pwd.
# the check works for harbor DB only.
if [ $ISNOTARY == false ]; then
if [ -z "$DB_USR" -o -z "$DB_PWD" ]; then
echo "DB_USR or DB_PWD not set, exiting..."
exit 1
fi
launch_mysql $DB_USR $DB_PWD
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else
launch_mysql root
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fi
fi
if [ $ISPGSQL == true ]; then
if [ $ISCLAIR == true ]; then
launch_pgsql $PGSQL_USR "/clair-db"
else
launch_pgsql $PGSQL_USR
fi
fi
}
function get_version {
if [ $ISMYSQL == true ]; then
result=$(get_version_mysql)
fi
if [ $ISPGSQL == true ]; then
result=$(get_version_pgsql $PGSQL_USR)
fi
cur_version=$result
}
# first version is less than or equal to second version.
function version_le {
## if no version specific, see it as larger then 1.5.0
if [ $1 = "head" ];then
return 1
fi
test "$(printf '%s\n' "$@" | sort -V | head -n 1)" = "$1";
}
function backup {
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echo "Performing backup..."
if [ $ISMYSQL == true ]; then
backup_mysql
fi
if [ $ISPGSQL == true ]; then
backup_pgsql
fi
rc="$?"
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echo "Backup performed."
exit $rc
}
function restore {
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echo "Performing restore..."
if [ $ISMYSQL == true ]; then
restore_mysql
fi
if [ $ISPGSQL == true ]; then
restore_pgsql
fi
rc="$?"
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echo "Restore performed."
exit $rc
}
function validate {
echo "Performing test..."
if [ $ISMYSQL == true ]; then
test_mysql $DB_USR $DB_PWD
fi
if [ $ISPGSQL == true ]; then
test_pgsql $PGSQL_USR
fi
rc="$?"
echo "Test performed."
exit $rc
}
function upgrade {
if [ $ISNOTARY == true ];then
up_notary $PGSQL_USR
elif [ $ISCLAIR == true ];then
up_clair $PGSQL_USR
else
up_harbor $1
fi
}
function up_harbor {
local target_version="$1"
if [ -z $target_version ]; then
target_version="head"
echo "Version is not specified. Default version is head."
fi
get_version
if [ "$cur_version" = "$target_version" ]; then
echo "It has always running the $target_version, no longer need to upgrade."
exit 0
fi
# $cur_version <='1.5.0', $target_version <='1.5.0', it needs to call mysql upgrade.
if version_le $cur_version '1.5.0' && version_le $target_version '1.5.0'; then
if [ $ISMYSQL != true ]; then
echo "Please mount the database volume to /var/lib/mysql, then to run the upgrade again."
return 1
else
alembic_up mysql $target_version
return $?
fi
fi
# $cur_version > '1.5.0', $target_version > '1.5.0', it needs to call pgsql upgrade.
if ! version_le $cur_version '1.5.0' && ! version_le $target_version '1.5.0'; then
if [ $ISPGSQL != true ]; then
echo "Please mount the database volume to /var/lib/postgresql/data, then to run the upgrade again."
return 1
else
alembic_up pgsql $target_version
return $?
fi
fi
# $cur_version <='1.5.0', $target_version >'1.5.0', it needs to upgrade to $cur_version.mysql => 1.5.0.mysql => 1.5.0.pgsql => target_version.pgsql.
if version_le $cur_version '1.5.0' && ! version_le $target_version '1.5.0'; then
if [ $ISMYSQL != true ]; then
echo "Please make sure to mount the correct the data volume."
return 1
else
launch_pgsql $PGSQL_USR
mysql_2_pgsql_1_5_0 $PGSQL_USR
# Pgsql won't run the init scripts as the migration script has already created the PG_VERSION,
# which is a flag that used by entrypoint.sh of pgsql to define whether to run init scripts to create harbor DBs.
# Here to force init notary DBs just align with new harbor launch process.
# Otherwise, user could get db failure when to launch harbor with notary as no data was created.
psql -U $PGSQL_USR -f /harbor-migration/db/schema/notaryserver_init.pgsql
psql -U $PGSQL_USR -f /harbor-migration/db/schema/notarysigner_init.pgsql
stop_mysql $DB_USR $DB_PWD
## it needs to call the alembic_up to target, disable it as it's now unsupported.
alembic_up pgsql $target_version
stop_pgsql $PGSQL_USR
rm -rf /var/lib/mysql/*
cp -rf $PGDATA/* /var/lib/mysql
## Chmod 700 to DB data directory
chmod 700 /var/lib/mysql
return 0
fi
fi
echo "Unsupported DB upgrade from $cur_version to $target_version, please check the inputs."
return 1
}
function main {
if [[ $1 = "help" || $1 = "h" || $# = 0 ]]; then
echo "Usage:"
echo "backup perform database backup"
echo "restore perform database restore"
echo "up, upgrade perform database schema upgrade"
echo "test test database connection"
echo "h, help usage help"
exit 0
fi
init
local key="$1"
case $key in
up|upgrade)
upgrade $2
;;
backup)
backup
;;
restore)
restore
;;
test)
validate
;;
*)
echo "unknown option"
exit 0
;;
esac
}
main "$@"