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Code Issues Releases Wiki Activity

Add WIP details on premix repo

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David Young
2020-06-10 11:15:32 +12:00
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parent 1db3ff831c
commit 7845f45066
9 changed files with 808 additions and 25 deletions
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21
manuscript/ha-docker-swarm/traefik.md
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@@ -26,30 +26,11 @@ To deal with these gaps, we need a front-end load-balancer, and in this design,
## Preparation
### Prepare the host
The traefik container is aware of the __other__ docker containers in the swarm, because it has access to the docker socket at **/var/run/docker.sock**. This allows traefik to dynamically configure itself based on the labels found on containers in the swarm, which is hugely useful. To make this functionality work on a SELinux-enabled CentOS7 host, we need to add custom SELinux policy.
!!! tip
The following is only necessary if you're using SELinux!
Run the following to build and activate policy to permit containers to access docker.sock:
```
mkdir ~/dockersock
cd ~/dockersock
curl -O https://raw.githubusercontent.com/dpw/\
selinux-dockersock/master/Makefile
curl -O https://raw.githubusercontent.com/dpw/\
selinux-dockersock/master/dockersock.te
make && semodule -i dockersock.pp
```
### Prepare traefik.toml
While it's possible to configure traefik via docker command arguments, I prefer to create a config file (`traefik.toml`). This allows me to change traefik's behaviour by simply changing the file, and keeps my docker config simple.
Create `/var/data/traefik/traefik.toml` as follows:
Create `/var/data/traefikv1/traefik.toml` as follows:
```
checkNewVersion = true