selfhosted-apps-docker/README.md

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# Selfhosted-Apps-Docker
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###### guide-by-example
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---
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![logo](https://i.imgur.com/u5LH0jI.png)
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---
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* [caddy_v2](caddy_v2/) - reverse proxy
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* [bitwarden_rs](bitwarden_rs/) - password manager
* [bookstack](bookstack/) - notes and documentation
* [borg_backup](borg_backup/) - backup utility
* [ddclient](ddclient/) - automatic DNS update
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* [dnsmasq](dnsmasq/) - DNS and DHCP server
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* [homer](homer/) - homepage
* [nextcloud](nextcloud/) - file share & sync
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* [portainer](portainer/) - docker management
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* [prometheus_grafana](prometheus_grafana/) - monitoring
* [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>
It's described in most details.
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You do need to have **basic docker and docker-compose knowledge**,
shit here is pretty hand holding and detailed, but it still should not be
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your first time running a docker container.
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# Some extra info
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### Caddy
When making changes to Caddyfile, the config needs to be reloaded afterwards.
On the docker host:<br>
`docker exec -w /etc/caddy caddy caddy reload`
Assuming container name is kept as `caddy`.
### Compose
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When making changes use `docker-compose down` and `docker-compose up -d`,
not just restart or stop/start.
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* you **do not** need to fuck with `docker-compose.yml` to get something up,
simple copy paste should suffice
* you **do** need to fuck with `.env` file, that's where all the variables are
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Often the `.env` file is used as `env_file`
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`env_file: .env`
* `.env` - actual name of a file that is 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 in it are available during the building of the container,
but unless named in the `environment:` 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 an existing external file.</br>
Variables in this file will be available in the running container,
but not during building of the container.
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So a setup having `env_file: .env` in the compose mixes these two together.
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Benefit is that you do not need to make changes at multiple places,
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adding variable or changing a name in `.env` does not require
to also go in to compose to add/change it there...</br>
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Also the compose file looks less cramped.
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Only issue is that **all** variables from the `.env` file are available in
all containers that use this `env_file: .env` method.</br>
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That can lead to potential issues if a container picks up enviroment
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variable that is intented for a different container of the stack.
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In the setups here it works and is tested, but if you start to use this
everywhere without understanding it, you can encounter issues.
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So first troubleshooting step should be abandoning `.env` and write out
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the variables directly in the compose file under containers that want them.
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---
### Images latest tag
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All images are without any tag, which defaults to `latest` tag being used.</br>
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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 the host
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are bind mounted in to containers.</br>
Don't feel like I know all of the aspects of this,
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but I know it's easier to edit a random file on a host,
or backup a directory when it's just there, sitting on the host.
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---
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### SendGrid
For sending emails free sendgrid account is used, which provides 100 free emails
a day.
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The configuration in `.env` files is almost universal, `apikey` is
really the username, not some placeholder.
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Only the password(actual value of apikey) changes,
which you generate in apikey section on SendGrid website.
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Though I heard complains lately that is not as easy as it was to register on SendGrid.
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---
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### Cloudflare
For managing DNS records. The free tier provides lot of managment options and
benefits. Like proxy between your domain/subdomain and your server, so no one
can get your public IP just from your domain name. Or 5 firewall rules that allow
you to geoblock whole world except your country.
[How to move to cloudflare.](https://support.cloudflare.com/hc/en-us/articles/205195708-Changing-your-domain-nameservers-to-Cloudflare)