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# Selfhosted-Apps-Docker
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###### guide by example
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---
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---
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* [caddy_v2](caddy_v2/) - reverse proxy
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* [bitwarden_rs](bitwarden_rs/) - password manager
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* [bookstack](bookstack/) - notes and documentation
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* [borg_backup](borg_backup/) - backup utility
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* [ddclient](ddclient/) - automatic DNS update
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* [dnsmasq](dnsmasq/) - DNS and DHCP server
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* [homer](homer/) - homepage
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* [nextcloud](nextcloud/) - file share & sync
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* [portainer](portainer/) - docker management
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* [prometheus_grafana](prometheus_grafana/) - monitoring
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* [watchtower](watchtower/) - automatic docker images update
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* [arch_linux_host_install](arch_linux_host_install)
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The core of the setup is Caddy reverse proxy.</br>
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It's described in most details.
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# Some docker basics and some info
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### Compose and environment variables
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You **do not** need to fuck with `docker-compose.yml` to get something up,
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simple copy paste should suffice.
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You **do** need to fuck with `.env` file, that's where all the variables are.
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Sometimes the `.env` file is used as `env_file`
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* `.env` - actual name of a file, used only by compose.</br>
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It is used automatically just by being in the directory
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with the `docker-compose.yml`</br>
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Variables set there are available during the building of the container,
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but unless named in the `enviroment:` option they are not available
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in the running containers.
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* `env_file` - an option in compose that defines existing external file.</br>
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Variables set in this file will be available in the running container,
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but not in compose.
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So to not have polluted huge ass compose file, or to not have multiple places
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where changes need to be made when adding a variable... `env_file: .env` BAM.
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Only issue is that all variables from `.env` are available in
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containers that use this.</br>
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That can lead to potential conflicts and clashes, looking at you nextcloud.
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In those cases variables names are declared per container.
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But `env_file: .env` is just easier, prettier... and mostly painless.
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---
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### Images latest tag
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All images are without any tag, which defaults to `latest` tag being used.
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This is [frowned upon](https://vsupalov.com/docker-latest-tag/),
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but feel free to choose a version and sticking with it once it goes to real use.
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---
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### Bind mount
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No docker volumes are used. Directories and files from host
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are bind mounted in to containers.</br>
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Don't feel like I know all of the aspects of this,
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but I know its easier to edit a random file on a host,
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or backup a directory when its just there, sitting on the host.
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---
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### SendGrid
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For sending emails free sendgrid account is used, which provides 100 free emails
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a day.
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The configuration in `.env` files is almost universal, `apikey` is really username.
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Only the password changes as it is one of yours accounts apikey value.
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---
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### Cloudflare
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For managing DNS records. The free tier provides lot of managment options and
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benefits. Like proxy between your domain/subdomain and your server, so no one
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can get your public IP just from your domain name. Or 5 firewall rules that allow
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you to geoblock whole world except your country.
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[How to move to cloudflare.](https://support.cloudflare.com/hc/en-us/articles/205195708-Changing-your-domain-nameservers-to-Cloudflare)
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