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# ab-nginx # ab-nginx
Containerized fully-functional implementation of NGINX running on Alpine **as a fully NON-ROOT user**. The container by default is a 'blank slate' that just serves files out of the box. Changing configuration, server blocks and content is accomplished with bind-mounts using a sensible, simple directory structure. The container auto-detects mounted certificates and switches to TLS automatically. [Helper scripts](https://git.asifbacchus.app/ab-docker/ab-nginx/releases) in the git repo make certificate mounting easier, allow for custom docker networks and more. The container by default can be used as a Let’s Encrypt endpoint with tools like certbot. Containerized fully-functional implementation of NGINX running on Alpine **as a fully NON-ROOT user**. The container by default is a 'blank slate' that just serves files out of the box. Changing configuration, server blocks and content is accomplished with bind-mounts using a sensible, simple directory structure. The container auto-detects mounted certificates and switches to TLS automatically. [Helper scripts](https://git.asifbacchus.dev/ab-docker/ab-nginx/releases) in the git repo make certificate mounting easier, allow for custom docker networks and more. The container by default can be used as a Let’s Encrypt endpoint with tools like certbot.
## Contents ## Contents
@ -24,27 +24,27 @@ ## Contents
## Alternate repository ## Alternate repository
Throughout this document, I reference my repository on DockerHub (`asifbacchus/ab-nginx:tag`). You may also feel free to pull directly from my private registry instead, especially if you need signed containers. Simply use `docker.asifbacchus.app/nginx/ab-nginx:tag`. I usually sign major dot-version releases (1.18, 1.19, etc.) as well as the 'latest' image. Throughout this document, I reference my repository on DockerHub (`asifbacchus/ab-nginx:tag`). You may also feel free to pull directly from my private registry instead, especially if you need signed containers. Simply use `docker.asifbacchus.dev/nginx/ab-nginx:tag`. I usually sign major dot-version releases (1.18, 1.19, etc.) as well as the 'latest' image.
## Documentation and scripts ## Documentation and scripts
Check out the [repo wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki) for detailed examples and documentation about the container and the [helper scripts](https://git.asifbacchus.app/ab-docker/ab-nginx/releases) which are located [here](https://git.asifbacchus.app/ab-docker/ab-nginx/releases). Check out the [repo wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki) for detailed examples and documentation about the container and the [helper scripts](https://git.asifbacchus.dev/ab-docker/ab-nginx/releases) which are located [here](https://git.asifbacchus.dev/ab-docker/ab-nginx/releases).
## Permissions ## Permissions
The container does **NOT** run under the root account. It runs under a user named *www-docker* with a UID of 8080. **This means any files you mount into the container need to be readable (and/or writable depending on your use-case) by UID 8080**. This does not mean just content files, it also includes configurations, server-blocks and *certificates*! Before mounting your files, ensure this is the case. There are more detailed instructions in the [wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki) if you need help setting file permissions. The container does **NOT** run under the root account. It runs under a user named *www-docker* with a UID of 8080. **This means any files you mount into the container need to be readable (and/or writable depending on your use-case) by UID 8080**. This does not mean just content files, it also includes configurations, server-blocks and *certificates*! Before mounting your files, ensure this is the case. There are more detailed instructions in the [wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki) if you need help setting file permissions.
This is a significant change versus most other NGINX implementations/containers where the main process is run as root This is a significant change versus most other NGINX implementations/containers where the main process is run as root
and the *worker processes* run as a limited user. In those cases, permissions don’t matter since NGINX can always use and the *worker processes* run as a limited user. In those cases, permissions don’t matter since NGINX can always use
the root account to read any files (and especially certificates!) it needs. Please understand this difference. the root account to read any files (and especially certificates!) it needs. Please understand this difference.
If you need to change the UID, then you’ll need to rebuild the container using If you need to change the UID, then you’ll need to rebuild the container using
the [Dockerfile in the git repo](https://git.asifbacchus.app/ab-docker/ab-nginx). The process would be something like the [Dockerfile in the git repo](https://git.asifbacchus.dev/ab-docker/ab-nginx). The process would be something like
this: this:
```bash ```bash
# clone the repo # clone the repo
git clone https://git.asifbacchus.app/ab-docker/ab-nginx git clone https://git.asifbacchus.dev/ab-docker/ab-nginx
# change to the proper directory and build the container # change to the proper directory and build the container
cd ab-nginx/build cd ab-nginx/build
@ -82,7 +82,7 @@ ### Configuration directory
├── ssl_certs.conf – (hard-coded for the container, best not to touch) ├── ssl_certs.conf – (hard-coded for the container, best not to touch)
``` ```
Locations with \**starred descriptions** are designed to be overwritten via bind-mounts to customize the container. For more details on all of these files and what they do, please refer to the [repo wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). **Remember that UID 8080 needs to be able to read any files you choose to bind-mount over the container defaults!** Locations with \**starred descriptions** are designed to be overwritten via bind-mounts to customize the container. For more details on all of these files and what they do, please refer to the [repo wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki). **Remember that UID 8080 needs to be able to read any files you choose to bind-mount over the container defaults!**
## Quick-start ## Quick-start
@ -121,7 +121,7 @@ ### Mounting configurations
If you want the container to ignore a specific set of configuration options, say you’re testing something, then rename the file with those configuration options using any extension other than *.conf*. I usually use *.conf.disabled*. Restart the container and that file will be ignored. If you want the container to ignore a specific set of configuration options, say you’re testing something, then rename the file with those configuration options using any extension other than *.conf*. I usually use *.conf.disabled*. Restart the container and that file will be ignored.
More details and examples are found in the [wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). More details and examples are found in the [wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki).
### Mounting server-blocks ### Mounting server-blocks
@ -146,7 +146,7 @@ # override default server-blocks entirely (use your own)
asifbacchus/ab-nginx asifbacchus/ab-nginx
``` ```
More details and examples are found in the [wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). More details and examples are found in the [wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki).
## TLS ## TLS
@ -186,9 +186,9 @@ # TLS 1.3 only mode (requires fullchain.pem, privkey.pem and chain.pem)
You may have noticed I also specified the `SERVER_NAMES` variable. This is necessary or SSL will not work since the hostname the server responds to must match the certificate being presented. **Make sure you set this environment variable to match your certificates!** N.B. If you are using your own server-blocks, then this environment variable is **NOT** required – it is only used by the container when auto-configuring the default server-blocks. You may have noticed I also specified the `SERVER_NAMES` variable. This is necessary or SSL will not work since the hostname the server responds to must match the certificate being presented. **Make sure you set this environment variable to match your certificates!** N.B. If you are using your own server-blocks, then this environment variable is **NOT** required – it is only used by the container when auto-configuring the default server-blocks.
If you want to integrate with Let's Encrypt, please refer to the [wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). If you want to integrate with Let's Encrypt, please refer to the [wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki).
Finally, I’d remind you once again that UID 8080 must be able to read your certificate files! It is common practice to restrict the private key to root readability only (i.e. chown root:root & chmod 600/400) but, that would stop the NGINX user in the container from reading it and NGINX will exit with an error. I address ways to allow your certificate files to remain secure but still readable by the NGINX user in the [wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). Finally, I’d remind you once again that UID 8080 must be able to read your certificate files! It is common practice to restrict the private key to root readability only (i.e. chown root:root & chmod 600/400) but, that would stop the NGINX user in the container from reading it and NGINX will exit with an error. I address ways to allow your certificate files to remain secure but still readable by the NGINX user in the [wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki).
## Environment variables ## Environment variables
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## Final thoughts ## Final thoughts
I think that's everything to get you going if you are already familiar with docker and with NGINX in general. If you need more help, please [refer to the wiki](https://git.asifbacchus.app/ab-docker/ab-nginx/wiki). I've explained everything there in detail. Also, check out the [helper scripts](https://git.asifbacchus.app/ab-docker/ab-nginx/releases) especially if you are deploying certificates. The scripts take care of all the docker command-lines for you so you have much less typing! I think that's everything to get you going if you are already familiar with docker and with NGINX in general. If you need more help, please [refer to the wiki](https://git.asifbacchus.dev/ab-docker/ab-nginx/wiki). I've explained everything there in detail. Also, check out the [helper scripts](https://git.asifbacchus.dev/ab-docker/ab-nginx/releases) especially if you are deploying certificates. The scripts take care of all the docker command-lines for you so you have much less typing!
If I've forgotten anything, you find any bugs or you have suggestions, please file an issue either on my private [git server ](https://git.asifbacchus.app/ab-docker/ab-nginx) or on [github](https://github.com/asifbacchus/ab-nginx). Also, I am *not* affiliated with NGINX in any way, so please **do not** bother them with any issues you find with this container. Bother me instead, I actually enjoy it! If I've forgotten anything, you find any bugs or you have suggestions, please file an issue either on my private [git server ](https://git.asifbacchus.dev/ab-docker/ab-nginx) or on [github](https://github.com/asifbacchus/ab-nginx). Also, I am *not* affiliated with NGINX in any way, so please **do not** bother them with any issues you find with this container. Bother me instead, I actually enjoy it!
**All the best and have fun!** **All the best and have fun!**