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Made the instructions more simple

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Updated the volume defintion to the latest master status
Removed the part around .yml variable substitution as we can use a "trick"
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ofthesun9
2018-10-18 18:59:22 +00:00
parent 9c639eebd4
commit 5b8deed06b
1 changed files with 7 additions and 2 deletions
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docs/swarm/master/README.md
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@@ -29,7 +29,9 @@ mzrm9nbdggsfz4sgq6dhs5i6n flying-dutchman Ready Active
### Volume definition
For data persistance (the Mailu services might be launched/relaunched on any of the swarm nodes), we need to have Mailu data stored in a manner accessible by every manager or worker in the swarm.
Hereafter we will assume that "Mailu Data" is available on every node at "$ROOT/certs:/certs". (GlusterFS and nfs shares have been successfully used)
Hereafter we will assume that "Mailu Data" is available on every node at "$ROOT/certs:/certs" (GlusterFS and nfs shares have been successfully used).
On this example, we are using:
- the mesh routing mode (default mode). With this mode, each service is given a virtual IP adress and docker manages the routing between this virtual IP and the container(s) providing this service.
- the default ingress mode.
@@ -67,13 +69,16 @@ As a side effect of this ingress mode "feature", make sure that the ingress subn
- redis, antispam, antivirus, fetchmail, admin, webdav have not been tested (hence replicas=1 in the following docker-compose.yml file)
## Variable substitution and docker-compose.yml
The docker stack deploy command doesn't support variable substitution in the .yml file itself. As a consequence, we need to use the following work-around:
The docker stack deploy command doesn't support variable substitution in the .yml file itself.
As a consequence, we cannot simply use ``` docker stack deploy -c docker.compose.yml mailu ```
Instead, we will use the following work-around:
``` echo "$(docker-compose -f /mnt/docker/apps/mailu/docker-compose.yml config 2>/dev/null)" | docker stack deploy -c- mailu ```
We need also to:
- change the way we define the volumes (nfs share in our case)
- add a deploy section for every service
- the way the ports are defined for the front service
- add the POD_ADDRESS_RANGE definition imap, smtp and antispam services
## Docker compose
An example of docker-compose-stack.yml file is available here: