Switching/Migrating to Docker

[Waldemar Hamm]

Hello Janos,

I’m sorry if I’ve missed answers to the below questions on the website but it seems that a sophisticated docker-variant of Piler has emerged by now and I think that’s pretty awesome and I really want to use it.

I have three questions:

1. How would I go about migrating from the usual piler installation to a docker-compose installation?
2. Does it matter from which piler version that migration would come from?
3. How do I upgrade piler later on? Just docker-compose pull or do I need to prepare other steps?

These questions are not time-critical. I’d love to switch to docker as soon as possible, though.

Thank you very much!

‌

[Janos SUTO]

Hello Waldemar, the details depend on whether you want to run docker on the same host that piler is installed on or you want to setup docker and piler on a new host. Eg. to copy the raw encrypted piler files and sphinx data files to new host, or simple set the docker mounts to point to the existing /var/piler/store, etc. dirs.

If you have a recent version of piler, then no special treatment is necessary. If it’s an older release, then it’s worth to check the upgrade docs.

The later upgrades would be a simple docker pull as you wrote unless there’s a database schema change, etc, but these are rare with recent releases.

[Waldemar Hamm]

Hello Janos ,

my use-case would be converting an existing piler host to a piler-docker host. I think the oldest piler version is 1.3.8.

[Janos SUTO]

Well, in that case, assuming you have all components (piler, sphinx and mysql) on the same host, do a backup just in case. Then stop all these daemons, fix docker-compose.yaml to use bind mounts, and start the containers.

[Janos SUTO]

Let me know if you need anything more to add.