Rotate Fly.io App Region #4599
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| name: Rotate Fly.io App Region | |
| on: | |
| schedule: | |
| # Runs every 2 hours | |
| - cron: '0 */2 * * *' | |
| workflow_dispatch: # Allows manual triggering | |
| env: | |
| node_version: 19 | |
| FORCE_COLOR: 1 | |
| concurrency: # prevent concurrent releases | |
| group: flyctl-roll-region | |
| cancel-in-progress: true | |
| jobs: | |
| rotate-region: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: superfly/flyctl-actions/setup-flyctl@master | |
| - name: Switch to a Different Region and Scale | |
| env: | |
| FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }} | |
| run: | | |
| APP_NAME="gumcast-api" | |
| OLD_REGION=$(flyctl regions list | grep 'Regions \[app\]:' | awk '{print $3}') | |
| # Ordered list of regions | |
| REGIONS=("lax" "sea" "bos" "dfw" "den" "ewr" "iad" "ord" "sjc") | |
| # Check if REGIONS is empty | |
| if [ ${#REGIONS[@]} -eq 0 ]; then | |
| echo "No regions defined. Exiting." | |
| exit 1 | |
| fi | |
| # If OLD_REGION is empty, bring up a machine in the first region | |
| if [ -z "$OLD_REGION" ]; then | |
| echo "No old region found. Bringing up a machine in the first region: ${REGIONS[0]}" | |
| flyctl scale count --region ${REGIONS[0]} 1 --yes | |
| exit 0 | |
| fi | |
| # Find the next region | |
| NEW_REGION="" | |
| for i in "${!REGIONS[@]}"; do | |
| if [[ "${REGIONS[$i]}" == "$OLD_REGION" ]]; then | |
| NEW_REGION=${REGIONS[$(( (i + 1) % ${#REGIONS[@]} ))]} | |
| break | |
| fi | |
| done | |
| # Check if NEW_REGION is empty or the same as OLD_REGION | |
| if [ -z "$NEW_REGION" ] || [ "$NEW_REGION" == "$OLD_REGION" ]; then | |
| echo "No new region found or it's the same as the old region. Exiting." | |
| exit 1 | |
| fi | |
| # Scale the new region to 1 | |
| flyctl scale count --region $NEW_REGION 1 --yes | |
| # Wait for the new region to be ready (optional, add more robust logic as needed) | |
| sleep 60 | |
| # Scale the old region to 0 | |
| flyctl scale count --region $OLD_REGION 0 --yes |