init

.github/workflows/publish.yml

@@ -0,0 +1,40 @@
+name: Build and Publish Docker Image
+
+on:
+ workflow_dispatch:
+
+jobs:
+ build:
+ runs-on: ubuntu-latest
+ permissions:
+ contents: write
+ packages: write
+ id-token: write
+
+ steps:
+ - name: Checkout sources
+ uses: actions/checkout@v3
+
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v2
+
+ - name: Set up Docker Buildx
+ id: buildx
+ uses: docker/setup-buildx-action@v2
+ with:
+ platforms: linux/amd64,linux/arm64
+
+ - name: Login to GitHub Container Registry
+ uses: docker/login-action@v2
+ with:
+ registry: ghcr.io
+ username: ${{ github.actor }}
+ password: ${{ secrets.GITHUB_TOKEN }}
+
+ - name: Build and Publish
+ uses: docker/build-push-action@v4
+ with:
+ file: Dockerfile
+ platforms: linux/arm64, linux/amd64
+ push: true
+ tags: ghcr.io/${{ github.repository }}:latest

Dockerfile

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+FROM alpine
+
+RUN apk update && apk add postgresql-client bash ncurses
+
+WORKDIR app
+
+ADD . .
+
+CMD bash migrate.sh

migrate.sh

@@ -0,0 +1,121 @@
+#!/bin/bash
+
+set -o pipefail
+
+export TERM=ansi
+_GREEN=$(tput setaf 2)
+_BLUE=$(tput setaf 4)
+_MAGENTA=$(tput setaf 5)
+_CYAN=$(tput setaf 6)
+_RED=$(tput setaf 1)
+_YELLOW=$(tput setaf 3)
+_RESET=$(tput sgr0)
+_BOLD=$(tput bold)
+
+# Function to print error messages and exit
+error_exit() {
+ printf "[ ${_RED}ERROR${_RESET} ] ${_RED}$1${_RESET}\n" >&2
+ exit 1
+}
+
+section() {
+ printf "${_RESET}\n"
+ echo "${_BOLD}${_BLUE}==== $1 ====${_RESET}"
+}
+
+write_ok() {
+ echo "[$_GREEN OK $_RESET] $1"
+}
+
+write_warn() {
+ echo "[$_YELLOW WARN $_RESET] $1"
+}
+
+trap 'echo "An error occurred. Exiting..."; exit 1;' ERR
+
+printf "${_BOLD}${_MAGENTA}"
+echo "+-------------------------------------+"
+echo "| |"
+echo "| Railway Postgres Migration Script |"
+echo "| |"
+echo "+-------------------------------------+"
+printf "${_RESET}\n"
+
+echo "For more information, see https://docs.railway.app/database/migration"
+echo "If you run into any issues, please reach out to us on Discord: https://discord.gg/railway"
+printf "${_RESET}\n"
+
+section "Validating environment variables"
+
+# Parse components using a tool like 'sed' or 'awk'
+PLUGIN_USER=$(echo $PLUGIN_URL | sed -e 's/mysql:\/\/\(.*\):.*@.*/\1/')
+PLUGIN_PASSWORD=$(echo $PLUGIN_URL | sed -e 's/mysql:\/\/.*:\(.*\)@.*/\1/')
+PLUGIN_HOST=$(echo $PLUGIN_URL | sed -e 's/mysql:\/\/.*@\(.*\):.*/\1/')
+PLUGIN_PORT=$(echo $PLUGIN_URL | sed -e 's/mysql:\/\/.*@.*:\(.*\)\/.*/\1/')
+PLUGIN_DB=$(echo $PLUGIN_URL | sed -e 's/mysql:\/\/.*@.*\/\(.*\)/\1/')
+
+NEW_USER=$(echo $NEW_URL | sed -e 's/mysql:\/\/\(.*\):.*@.*/\1/')
+NEW_PASSWORD=$(echo $NEW_URL | sed -e 's/mysql:\/\/.*:\(.*\)@.*/\1/')
+NEW_HOST=$(echo $NEW_URL | sed -e 's/mysql:\/\/.*@\(.*\):.*/\1/')
+NEW_PORT=$(echo $NEW_URL | sed -e 's/mysql:\/\/.*@.*:\(.*\)\/.*/\1/')
+NEW_DB=$(echo $NEW_URL | sed -e 's/mysql:\/\/.*@.*\/\(.*\)/\1/')
+
+# Validate that PLUGIN_URL environment variable exists
+if [ -z "$PLUGIN_URL" ]; then
+ error_exit "PLUGIN_URL environment variable is not set."
+fi
+
+write_ok "PLUGIN_URL correctly set"
+
+# Validate that NEW_URL environment variable exists
+if [ -z "$NEW_URL" ]; then
+ error_exit "NEW_URL environment variable is not set."
+fi
+
+write_ok "NEW_URL correctly set"
+
+section "Checking if NEW_URL is empty"
+
+tables=$(mysql --silent --skip-column-names -h"$NEW_HOST" -u"$NEW_USER" -p"$NEW_PASSWORD" --port "$NEW_PORT" -e "SHOW TABLES FROM $NEW_DB")
+
+echo "tables=$tables"
+
+if [[ -z "$tables" ]]; then
+ if [ -z "$OVERWRITE_DATABASE" ]; then
+ write_ok "The new database is empty. Proceeding with restore."
+ fi
+else
+ if [ -z "$OVERWRITE_DATABASE" ]; then
+ error_exit "The new database is not empty. Aborting migration.\nSet the OVERWRITE_DATABASE environment variable to overwrite the new database."
+ fi
+ write_warn "The new database is not empty. Found OVERWRITE_DATABASE environment variable. Proceeding with restore."
+fi
+
+section "Dumping database from PLUGIN_URL" 
+
+dump_file="plugin_dump.sql"
+mysqldump -u $PLUGIN_USER -p$PLUGIN_PASSWORD -h $PLUGIN_HOST -P $PLUGIN_PORT $PLUGIN_DB > $dump_file
+
+write_ok "Successfully saved dump to $dump_file"
+
+dump_file_size=$(ls -lh "$dump_file" | awk '{print $5}')
+echo "Dump file size: $dump_file_size"
+
+section "Restoring database to NEW_URL"
+
+# Restore that data to the new database
+mysql --silent --skip-column-names -h"$NEW_HOST" -u"$NEW_USER" -p"$NEW_PASSWORD" --port "$NEW_PORT" "$NEW_DB" < $dump_file
+
+write_ok "Successfully restored database to NEW_URL"
+
+printf "${_RESET}\n"
+printf "${_RESET}\n"
+echo "${_BOLD}${_GREEN}Migration completed successfully${_RESET}"
+printf "${_RESET}\n"
+echo "Next steps..."
+echo "1. Update your application's DATABASE_URL environment variable to point to the new database."
+echo ' - You can use variable references to do this. For example `${{ MySQL.DATABASE_URL }}`'
+echo "2. Verify that your application is working as expected."
+echo "3. Remove the legacy plugin and this service from your Railway project."
+
+printf "${_RESET}\n"