99 lines
2.1 KiB
Markdown
99 lines
2.1 KiB
Markdown
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# Docker basics and troubleshooting
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###### guide-by-example
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# Purpose
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For me to wrap head around some shit.
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Notes for troubleshooting.
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What was at one time tested and should 100% work.
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# docker-compose
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`docker-compose.yml`
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```yml
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services:
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whoami:
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image: "containous/whoami"
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container_name: "whoami"
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hostname: "whoami"
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ports:
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- "80:80"
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```
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# Scheduling and cron issues
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The default docker-compose deployment uses cron container.<br>
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Problem is it does not work, so Ofelia is used.<br>
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[Here](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/ofelia)
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is guide how to set it up.
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Bellow is Ofelia's config file for discovery and ping check of live hosts.
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`config.ini`
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```ini
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[job-exec "phpipam ping"]
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schedule = @every 10m
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container = phpipam-web
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command = /usr/bin/php /phpipam/functions/scripts/pingCheck.php
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[job-exec "phpipam discovery"]
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schedule = @every 25m
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container = phpipam-web
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command = /usr/bin/php /phpipam/functions/scripts/discoveryCheck.php
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```
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# Reverse proxy
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Caddy v2 is used, details
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[here](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2).</br>
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`Caddyfile`
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```
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ipam.{$MY_DOMAIN} {
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reverse_proxy phpipam-web:80
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}
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```
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# First run
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* New phpipam installation
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* Automatic database installation
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* MySQL username: root
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* MySQL password: my_secret_mysql_root_pass
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# Update
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[Watchtower](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/watchtower)
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updates the image automatically.
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Manual image update:
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- `docker-compose pull`<br>
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- `docker-compose up -d`<br>
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- `docker image prune`
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# Backup and restore
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#### Backup
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Using [borg](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/borg_backup)
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that makes daily snapshot of the entire directory.
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#### Restore
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* down the homer container `docker-compose down`<br>
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* delete the entire homer directory<br>
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* from the backup copy back the homer directory<br>
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* start the container `docker-compose up -d`
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