docker-compose: script for migration
Signed-off-by: rjshrjndrn <rjshrjndrn@gmail.com>
This commit is contained in:
rjshrjndrn
parent
a0a08d042a
commit
224495c0fb
1 changed files with 49 additions and 34 deletions
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@ -1,8 +1,9 @@
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#!/bin/bash
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#!/usr/bin/env bash
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# Path to the original and new env files
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original_env_file="$1"
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# Check if the original env file exists and is not empty
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if [ ! -s "$original_env_file" ]; then
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echo "Error: The original env file is empty or does not exist."
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echo "Usage: $0 /path/to/original.env"
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@ -10,64 +11,75 @@ if [ ! -s "$original_env_file" ]; then
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fi
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new_env_file="./common.env"
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# Create a temporary file for the updated env
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temp_env_file=$(mktemp)
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# Function to merge environment variables from original to new env file
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function merge_envs() {
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local content=""
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while IFS='=' read -r key value; do
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# Skip the line if the key is COMMON_VERSION
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case "$key" in
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COMMON_VERSION)
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# Capture the original version for later use
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original_version=$(echo "$value" | xargs)
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continue
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;;
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COMMON_PG_PASSWORD)
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# Store PostgreSQL password for later use
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pgpassword=$value
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;;
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POSTGRES_VERSION | REDIS_VERSION | MINIO_VERSION)
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# Don't update db versions automatically.
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continue
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# Ignore certain variables
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;;
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*)
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# Add other variables to content
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content+="${key}=${value}\n"
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;;
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esac
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# Remove any existing entry from the new env file and add the new value
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grep -v "^$key=" "$new_env_file" >"$temp_env_file"
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mv "$temp_env_file" "$new_env_file"
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echo "$key=$value" >>"$new_env_file"
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done <"$original_env_file"
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# Remove existing entries from new env file and add updated content
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grep -vFf <(printf "%s" "$content" | cut -d'=' -f1) "$new_env_file" >"$temp_env_file"
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printf "%b" "$content" >>"$temp_env_file"
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mv "$temp_env_file" "$new_env_file"
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}
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function parse_version() {
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local version=${1#v} # Remove 'v' if present
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IFS='.' read -r major minor patch <<<"$version"
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echo "$major $minor"
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}
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# We need to remove version dots
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# Function to normalize version numbers for comparison
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function normalise_version {
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echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'
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echo "$1" | awk -F. '{ printf("%03d%03d%03d\n", $1, $2, $3); }'
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}
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# Function to log messages
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function log_message() {
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echo "$@" >&2
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}
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# Function to create migration versions based on the current and previous application versions
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function create_migration_versions() {
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# Checking migration versions
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cd "${SCHEMA_DIR:-/opt/openreplay/openreplay/scripts/schema}" || {
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log_message not able to cd $SCHEMA_DIR
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log_message "not able to cd $SCHEMA_DIR"
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exit 100
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}
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db=postgresql
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all_versions=($(ls -l db/init_dbs/$db | grep -E ^d | grep -v create | awk '{print $NF}'))
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# List all version directories excluding 'create' directory
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all_versions=($(find db/init_dbs/$db -maxdepth 1 -type d -exec basename {} \; | grep -v create))
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migration_versions=($(for ver in ${all_versions[*]}; do if [[ $(normalise_version $ver) > $(normalise_version "${PREVIOUS_APP_VERSION}") ]]; then echo $ver; fi; done | sort -V))
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# Normalize the previous application version for comparison
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PREVIOUS_APP_VERSION_NORMALIZED=$(normalise_version "${PREVIOUS_APP_VERSION}")
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migration_versions=()
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for ver in "${all_versions[@]}"; do
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if [[ $(normalise_version "$ver") > "$PREVIOUS_APP_VERSION_NORMALIZED" ]]; then
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migration_versions+=("$ver")
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fi
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done
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# Join migration versions into a single string separated by commas
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joined_migration_versions=$(
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IFS=,
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echo "${migration_versions[*]}"
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)
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# Return to the previous directory
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cd - >/dev/null || {
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log_message "not able to cd back"
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exit 100
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@ -77,26 +89,29 @@ function create_migration_versions() {
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echo "$joined_migration_versions"
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}
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# Function to perform migration
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function migrate() {
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# Set schema directory and previous application version
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export SCHEMA_DIR="../schema/"
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export PREVIOUS_APP_VERSION=${original_version#v}
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# Create migration versions array
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IFS=',' read -ra joined_migration_versions <<<"$(create_migration_versions)"
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# Check if there are versions to migrate
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[[ ${#joined_migration_versions[@]} -eq 0 ]] && {
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echo Nothing to migrate
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echo "Nothing to migrate"
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return
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}
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for ver in ${joined_migration_versions[*]}; do
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echo $ver
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echo docker run --rm --network openreplay-net --name pgmigrate \
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-e "PGHOST=postgres" -e "PGPORT=5432" -e "PGDATABASE=postgres" \
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-e "PGUSER=postgres" -e "PGPASSWORD=$pgpassword" \
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-v /opt/data/:$SCHEMA_DIR \
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postgres \
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psql -f /file/from/host
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# Loop through versions and prepare Docker run commands
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for ver in "${joined_migration_versions[@]}"; do
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echo "$ver"
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echo "docker run --rm --network openreplay-net \
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--name pgmigrate -e 'PGHOST=postgres' -e 'PGPORT=5432' \
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-e 'PGDATABASE=postgres' -e 'PGUSER=postgres' -e 'PGPASSWORD=$pgpassword' \
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-v /opt/data/:$SCHEMA_DIR postgres psql -f /opt/data/schema/db/init_dbs/postgresql/$ver/$ver.sql"
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done
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}
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# Upgrade postgresql
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# Merge environment variables and perform migration
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merge_envs
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migrate
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