72 lines
No EOL
2.7 KiB
Markdown
72 lines
No EOL
2.7 KiB
Markdown
# n8n Continuous Deployment
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Previously used this script for CD, it worked, but I wanted an instant deployment and not just ran on a schedule. So I created an n8n automation. Here's the visual breakdown:
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```mermaid
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graph LR
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A((Webhook Received)) --> B{PR Merged?}
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B -- No --> C(End)
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B -- Yes --> D{Extract App Name}
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D --> E{SSH to Host Machine}
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E --> F{Git Pull & Docker Compose Up}
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F --> G{Error?}
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G -- Yes --> H[Send Gotify Notification]
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G -- No --> I[Extract PR Number]
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I --> J[Add PR Number to Forgejo API URL]
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J --> K[Send Review with Logs]
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K --> L(End)
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H --> L
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```
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## Outline
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- Webhook is sent whenever a PR is merged
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- Filters out any new, edited or re-opened PR's
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- Checks the PR title for app name, which is filtered so each SSH session matches based on the IF conditions.
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- SSH in to the machine that hosts that docker compose stack running git pull and docker compose up -d
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- Optional, If there is any error message we sent Gotify a link to the PR and error message
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- Set number from JSON to number in n8n
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- Add that number to URL of API request to Forgejo which we add a review with the logs if no errors. https://git.mafyuh.dev/mafyuh/Auto-Homelab/pulls/222#issuecomment-1799
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The only exception is n8n itself. Which for now I will manually update.
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## dccd instructions (no longer used besides ag-backup)
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Modified version of https://github.com/loganmarchione/dccd, with Gotify notification on error and allowing to choose which directory is cd'd into before running script. I run this on each docker host through crontab every 30 minutes, just adding the -f flag with the folder which that host represents. So each directory represents a host
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Clone this repo:
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```
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git clone https://git.mafyuh.dev/mafyuh/Auto-Homelab.git
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```
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Make executable:
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```
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sudo chmod +x /home/mafyuh/Auto-Homelab/scripts/dccd.sh
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```
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Example:
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```
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./dccd.sh -b main -d /home/mafyuh/Auto-Homelab -p -f 'arrs'
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```
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Crontab every 30 mins:
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```
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*/30 * * * * /home/mafyuh/Auto-Homelab/scripts/dccd.sh -b main -d /home/mafyuh/Auto-Homelab -l /tmp/dccd.txt -p -f 'arrs'
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```
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View Logs:
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```
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cat /tmp/dccd.txt
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```
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Export Variables:
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```
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export GOTIFY_BASE_URL="https:go.example.com"
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export GOTIFY_TOKEN="token"
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```
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Full Usage:
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```
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Options:
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-b <name> Specify the remote branch to track (default: main)
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-d <path> Specify the base directory of the git repository (required)
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-h Show this help message
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-l <path> Specify the path to the log file (default: /tmp/dccd.log)
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-p Specify if you want to prune docker images (default: don't prune)
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-x <path> Exclude directories matching the specified pattern (relative to the base directory)
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-f <pattern> Specify the pattern for folder names to match
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``` |