robojerk 70486907aa Major improvements: flexible install dir, configurable compose file name for git, enhanced webhook notifications, cross-platform lock, robust rollback, and updated docs.\n\n- Install dir is now user-confirmable and dynamic\n- Added COMPOSE_FILENAME for git stacks\n- Webhook payloads now include git context and rollback events\n- Lock file age check is cross-platform\n- Rollback notifications for success/failure\n- Updated TOML example and documentation\n- Many robustness and UX improvements

2025-06-25 15:15:40 -07:00

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Webhook Notifications

ComposeSync can send webhook notifications for various events, including enhanced Git context information.

Configuration

Set the webhook URL in your configuration:

[global]
NOTIFICATION_WEBHOOK_URL = "https://your-webhook-url.com/endpoint"

Or in .env format:

NOTIFICATION_WEBHOOK_URL=https://your-webhook-url.com/endpoint

Webhook Events

ComposeSync sends notifications for the following events:

Event	Description	When Sent
`update_success`	Stack updated successfully	After successful docker compose up
`update_failure`	Update failed, rollback initiated	When docker compose up fails
`rollback_success`	Rollback completed successfully	After successful rollback
`rollback_failure`	Rollback failed	When rollback also fails
`dry_run`	Dry-run mode simulation	When DRY_RUN=true

Webhook Payload

Each webhook notification includes:

{
  "event": "update_success",
  "stack_name": "immich",
  "timestamp": "2024-01-15T10:30:00Z",
  "message": "Successfully updated stack immich",
  "version_id": "abc1234",
  "diff": "- old line\n+ new line\n...",
  "git_context": "Commit: abc1234 - Update dependencies (Ref: main) | Repo: immich-app"
}

Payload Fields

Field	Description	Example
`event`	Event type	`update_success`
`stack_name`	Name of the stack	`immich`
`timestamp`	ISO 8601 timestamp	`2024-01-15T10:30:00Z`
`message`	Human-readable message	`Successfully updated stack immich`
`version_id`	Version identifier	`abc1234` (Git commit) or `20240115103000` (timestamp)
`diff`	Changes applied (truncated to 50 lines)	`- old line\n+ new line`
`git_context`	Git information (for Git repositories)	`Commit: abc1234 - Update deps (Ref: main)

Git Context Information

For Git repositories, the git_context field provides:

Commit hash: Short commit hash
Commit message: First 100 characters of commit message
Reference: Branch, tag, or commit hash being tracked
Repository: Repository name (sanitized)

Example Git context:

Commit: abc1234 - Update dependencies and fix security issues (Ref: main) | Repo: immich-app

Testing Webhooks

You can test webhook notifications using services like:

webhook.site - Temporary webhook endpoints
ngrok - Expose local endpoints
Discord webhooks
Slack webhooks

Example: Discord Integration

[global]
NOTIFICATION_WEBHOOK_URL = "https://discord.com/api/webhooks/YOUR_WEBHOOK_URL"

Example: Slack Integration

[global]
NOTIFICATION_WEBHOOK_URL = "https://hooks.slack.com/services/YOUR_WEBHOOK_URL"

Error Handling

Webhook failures don't stop the update process
Failed webhook requests are logged but don't cause errors
Network timeouts are handled gracefully

Overview

Webhook notifications provide:

Real-time updates on stack changes
Error notifications for failed updates
Integration with monitoring systems
Diff output showing what changed
Support for dry-run mode notifications

TOML Configuration

Global Webhook Configuration

Configure webhooks for all stacks in your TOML file:

# Global settings
[global]
UPDATE_INTERVAL_SECONDS = 3600
KEEP_VERSIONS = 10
DRY_RUN = false
NOTIFICATION_WEBHOOK_URL = "https://your-webhook-url.com/endpoint"

# Stack configurations
[immich]
URL = "https://github.com/immich-app/immich/releases/latest/download/docker-compose.yml"
PATH = "/opt/composesync/stacks/immich"
TOOL = "wget"

[dev-app]
URL = "https://github.com/user/dev-app.git"
PATH = "/opt/composesync/stacks/dev-app"
TOOL = "git"
GIT_SUBPATH = "docker/docker-compose.yml"
GIT_REF = "develop"

Per-Stack Webhook Configuration

Override webhook settings for specific stacks:

# Global settings
[global]
UPDATE_INTERVAL_SECONDS = 3600
KEEP_VERSIONS = 10
NOTIFICATION_WEBHOOK_URL = "https://default-webhook.com/endpoint"

# Production stack (use global webhook)
[immich]
URL = "https://github.com/immich-app/immich/releases/latest/download/docker-compose.yml"
PATH = "/opt/composesync/stacks/immich"
TOOL = "wget"

# Development stack (different webhook)
[dev-app]
URL = "https://github.com/user/dev-app.git"
PATH = "/opt/composesync/stacks/dev-app"
TOOL = "git"
GIT_SUBPATH = "docker/docker-compose.yml"
GIT_REF = "develop"
NOTIFICATION_WEBHOOK_URL = "https://dev-webhook.com/endpoint"

Legacy .env Configuration

Global Webhook Configuration

# Global settings
UPDATE_INTERVAL_SECONDS=3600
KEEP_VERSIONS=10
DRY_RUN=false
NOTIFICATION_WEBHOOK_URL=https://your-webhook-url.com/endpoint

# Stack configurations
STACKS=2

STACK_1_NAME=immich
STACK_1_URL=https://github.com/immich-app/immich/releases/latest/download/docker-compose.yml
STACK_1_PATH=/opt/composesync/stacks/immich
STACK_1_TOOL=wget

STACK_2_NAME=dev-app
STACK_2_URL=https://github.com/user/dev-app.git
STACK_2_PATH=/opt/composesync/stacks/dev-app
STACK_2_TOOL=git
STACK_2_GIT_SUBPATH=docker/docker-compose.yml
STACK_2_GIT_REF=develop

Per-Stack Webhook Configuration

# Global settings
UPDATE_INTERVAL_SECONDS=3600
KEEP_VERSIONS=10
NOTIFICATION_WEBHOOK_URL=https://default-webhook.com/endpoint

# Stack configurations
STACKS=2

# Production stack (use global webhook)
STACK_1_NAME=immich
STACK_1_URL=https://github.com/immich-app/immich/releases/latest/download/docker-compose.yml
STACK_1_PATH=/opt/composesync/stacks/immich
STACK_1_TOOL=wget

# Development stack (different webhook)
STACK_2_NAME=dev-app
STACK_2_URL=https://github.com/user/dev-app.git
STACK_2_PATH=/opt/composesync/stacks/dev-app
STACK_2_TOOL=git
STACK_2_GIT_SUBPATH=docker/docker-compose.yml
STACK_2_GIT_REF=develop
STACK_2_NOTIFICATION_WEBHOOK_URL=https://dev-webhook.com/endpoint

Webhook Payload Format

ComposeSync sends JSON payloads with the following structure:

{
  "event": "update_success",
  "stack_name": "immich",
  "timestamp": "2024-01-15T10:30:02Z",
  "message": "Successfully updated stack immich",
  "version_id": "20240115103002",
  "diff": "--- a/docker-compose.yml\n+++ b/docker-compose.yml\n@@ -15,7 +15,7 @@ services:\n   immich-server:\n-    image: ghcr.io/immich-app/immich-server:release\n+    image: ghcr.io/immich-app/immich-server:v1.75.0\n"
}

Event Types

Event	Description	When Sent
`update_success`	Stack updated successfully	After successful update
`update_failure`	Stack update failed	After failed update (with rollback)
`dry_run`	Dry-run mode notification	When dry-run mode is enabled

Payload Fields

Field	Type	Description
`event`	string	Event type (update_success, update_failure, dry_run)
`stack_name`	string	Name of the stack being updated
`timestamp`	string	ISO 8601 timestamp
`message`	string	Human-readable message
`version_id`	string	Version identifier (timestamp or git commit)
`diff`	string	Unified diff of changes (truncated to 50 lines)

Webhook Service Examples

Discord Webhook

[global]
NOTIFICATION_WEBHOOK_URL = "https://discord.com/api/webhooks/YOUR_WEBHOOK_ID/YOUR_TOKEN"

Discord will display the notification with:

Stack name as title
Message as content
Diff in a code block
Timestamp

Slack Webhook

[global]
NOTIFICATION_WEBHOOK_URL = "https://hooks.slack.com/services/YOUR_WORKSPACE/YOUR_CHANNEL/YOUR_TOKEN"

Slack will display:

Rich message with stack information
Diff in a collapsible section
Color coding for success/failure

Microsoft Teams Webhook

[global]
NOTIFICATION_WEBHOOK_URL = "https://your-org.webhook.office.com/webhookb2/YOUR_WEBHOOK_ID/IncomingWebhook/YOUR_TOKEN/YOUR_CHANNEL"

Teams will show:

Adaptive card with stack details
Diff in a code block
Action buttons for quick access

Custom Webhook Service

[global]
NOTIFICATION_WEBHOOK_URL = "https://your-service.com/webhook"

Your service can parse the JSON payload to:

Store update history
Trigger automated responses
Send email notifications
Update monitoring dashboards

Dry-Run Mode Notifications

When dry-run mode is enabled, webhooks are still sent with a [DRY-RUN] prefix:

{
  "event": "update_success",
  "stack_name": "immich",
  "timestamp": "2024-01-15T10:30:02Z",
  "message": "[DRY-RUN] Would apply changes to immich",
  "version_id": "20240115103002",
  "diff": "--- a/docker-compose.yml\n+++ b/docker-compose.yml\n@@ -15,7 +15,7 @@ services:\n   immich-server:\n-    image: ghcr.io/immich-app/immich-server:release\n+    image: ghcr.io/immich-app/immich-server:v1.75.0\n"
}

This is useful for:

Testing webhook configurations
Previewing changes before applying
Validating webhook integrations

Error Notifications

When updates fail, ComposeSync sends error notifications:

{
  "event": "update_failure",
  "stack_name": "immich",
  "timestamp": "2024-01-15T10:30:02Z",
  "message": "Failed to update stack immich, rolled back to previous version",
  "version_id": "20240115103002",
  "diff": "--- a/docker-compose.yml\n+++ b/docker-compose.yml\n@@ -15,7 +15,7 @@ services:\n   immich-server:\n-    image: ghcr.io/immich-app/immich-server:release\n+    image: ghcr.io/immich-app/immich-server:v1.75.0\n"
}

Testing Webhooks

Manual Testing

Test your webhook endpoint manually:

# Test basic webhook
curl -X POST -H "Content-Type: application/json" \
  -d '{"event": "test", "message": "Test notification"}' \
  https://your-webhook-url.com/endpoint

# Test with full payload
curl -X POST -H "Content-Type: application/json" \
  -d '{
    "event": "update_success",
    "stack_name": "test-stack",
    "timestamp": "2024-01-15T10:30:02Z",
    "message": "Test update notification",
    "version_id": "test-123",
    "diff": "--- a/test.yml\n+++ b/test.yml\n@@ -1,1 +1,1 @@\n- old\n+ new\n"
  }' \
  https://your-webhook-url.com/endpoint

Enable Dry-Run Mode

Test webhooks safely with dry-run mode:

[global]
DRY_RUN = true
NOTIFICATION_WEBHOOK_URL = "https://your-webhook-url.com/endpoint"

[test-stack]
URL = "https://github.com/user/test-app.git"
PATH = "/opt/composesync/stacks/test"
TOOL = "git"
GIT_SUBPATH = "docker/docker-compose.yml"
GIT_REF = "main"

Best Practices

1. Use Different Webhooks for Different Environments

# Production webhook
[global]
NOTIFICATION_WEBHOOK_URL = "https://prod-webhook.com/endpoint"

# Development webhook
[dev-app]
URL = "https://github.com/user/dev-app.git"
PATH = "/opt/composesync/stacks/dev-app"
TOOL = "git"
NOTIFICATION_WEBHOOK_URL = "https://dev-webhook.com/endpoint"

2. Handle Webhook Failures Gracefully

ComposeSync continues to work even if webhook notifications fail:

Webhook failures don't affect stack updates
Failed webhooks are logged but don't stop the process
You can monitor webhook delivery in the logs

3. Secure Your Webhooks

Use HTTPS endpoints only
Consider webhook authentication if supported
Rotate webhook tokens regularly
Monitor webhook access logs

4. Monitor Webhook Delivery

# Check webhook delivery in logs
sudo journalctl -u composesync | grep "webhook"

# Filter for webhook errors
sudo journalctl -u composesync | grep "ERROR.*webhook"

Troubleshooting

Webhook Not Being Sent

# Check if webhook URL is configured
grep "NOTIFICATION_WEBHOOK_URL" /opt/composesync/config.toml

# Check service logs for webhook errors
sudo journalctl -u composesync | grep "webhook"

Webhook Delivery Failures

# Test webhook endpoint manually
curl -X POST -H "Content-Type: application/json" \
  -d '{"test": "message"}' \
  https://your-webhook-url.com/endpoint

# Check network connectivity
wget -q --spider https://your-webhook-url.com/endpoint
echo $?

Webhook Payload Issues

# Check webhook payload format
sudo journalctl -u composesync | grep "payload"

# Verify JSON syntax
echo '{"test": "payload"}' | jq .

Rate Limiting

If your webhook service has rate limits:

Consider batching notifications
Implement retry logic in your webhook service
Use different webhooks for different stacks

12 KiB Raw Blame History

Webhook Notifications

Configuration

Webhook Events

Webhook Payload

Payload Fields

Git Context Information

Testing Webhooks

Example: Discord Integration

Example: Slack Integration

Error Handling

Overview

TOML Configuration

Global Webhook Configuration

Per-Stack Webhook Configuration

Legacy .env Configuration

Global Webhook Configuration

Per-Stack Webhook Configuration

Webhook Payload Format

Event Types

Payload Fields

Webhook Service Examples

Discord Webhook

Slack Webhook

Microsoft Teams Webhook

Custom Webhook Service

Dry-Run Mode Notifications

Error Notifications

Testing Webhooks

Manual Testing

Enable Dry-Run Mode

Best Practices

1. Use Different Webhooks for Different Environments

2. Handle Webhook Failures Gracefully

3. Secure Your Webhooks

4. Monitor Webhook Delivery

Troubleshooting

Webhook Not Being Sent

Webhook Delivery Failures

Webhook Payload Issues

Rate Limiting

12 KiB

Raw Blame History