125 lines
3.7 KiB
Bash
125 lines
3.7 KiB
Bash
#!/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: $0 /path/to/original.env"
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exit 1
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fi
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new_env_file="./common.env"
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temp_env_file=$(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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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 "$key" in
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COMMON_VERSION)
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original_version=$(echo "$value" | xargs)
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continue
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;;
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COMMON_PG_PASSWORD)
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pgpassword=$(echo $value | xargs)
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;;
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POSTGRES_VERSION | REDIS_VERSION | MINIO_VERSION)
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# Don't update db versions automatically.
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continue
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;;
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esac
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# Remove any existing entry from the new env file and add the new value
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grep -v "^$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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}
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# Function to normalize version numbers for comparison
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function normalise_version {
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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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SCHEMA_DIR="../schema/"
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cd $SCHEMA_DIR || {
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log_message "not able to cd $SCHEMA_DIR"
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exit 100
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}
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db=postgresql
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# List all version directories excluding 'create' directory
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all_versions=($(find db/init_dbs/$db -maxdepth 1 -type d -exec basename {} \; | grep -v create))
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# Normalize the previous application version for comparison
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PREVIOUS_APP_VERSION_NORMALIZED=$(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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}
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log_message "output: $joined_migration_versions"
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echo "$joined_migration_versions"
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}
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export SCHEMA_DIR="$(readlink -f ../schema/)"
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echo $SCHEMA_DIR
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# Function to perform migration
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function migrate() {
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# Set schema directory and previous application version
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export PREVIOUS_APP_VERSION=${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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[[ ${#joined_migration_versions[@]} -eq 0 ]] && {
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echo "Nothing to migrate"
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return
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}
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# Loop through versions and prepare Docker run commands
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for ver in "${joined_migration_versions[@]}"; do
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echo "$ver"
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docker run --rm --network docker-compose_opereplay-net \
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--name pgmigrate -e PGHOST=postgres -e PGPORT=5432 \
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-e PGDATABASE=postgres -e PGUSER=postgres -e PGPASSWORD=$pgpassword \
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-v $SCHEMA_DIR:/opt/data/ postgres psql -f /opt/data/db/init_dbs/postgresql/$ver/$ver.sql
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done
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}
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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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# Load variables from common.env into the current shell's environment
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set -a # automatically export all variables
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source common.env
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set +a
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# Use the `envsubst` command to substitute the shell environment variables into reference_var.env and output to a combined .env
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find ./ -type f \( -iname "*.env" -o -iname "docker-compose.yaml" \) ! -name "common.env" -exec /bin/bash -c 'file="{}";cp "$file" "$file.bak"; envsubst < "$file.bak" > "$file"; rm "$file.bak"' \;
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sudo -E docker-compose up -d
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