PostHog Hobby (self-hosted) install¶
Created a directory /op/posthog into which downloaded and ran the Posthog install script from https://posthog.com/docs/self-host.
Following docs from https://posthog.com/docs/self-host didnt really work. The posthog-web-1 container kept on crashlooping. Checking the logs with 'docker logs revealed that the container misses a non-defaultSECRET_KEY` env variable.
For a list of env vars see: https://posthog.com/docs/self-host/configure/environment-variables
Another attempt to start Posthog was made like this:
cd /opt/posthog
export SITE_URL="https://posthog.ftmo.com"
SECRET_KEY=`openssl rand -base64 30`
docker-compose up
Problems persisted. Finally this comment solved the issue: https://github.com/PostHog/posthog/issues/16169#issuecomment-1794239573
Maintenance¶
To start or stop posthog, do cd /opt/posthog and use docker-compose up --detach or docker-compose down.
Afterwards check if all containers are running correctly using docker ps. This might take a while until all container boot up.
Debugging¶
If you notice anything similar in the docker ps output, it might be the container is crashlooping:
Restarting (1) 50 seconds ago```
In that case you must check what is wrong using `docker logs <CONTAINER_ID>`
## Zookeeper crashloop
Zookeper wouldnt start because of:
```ERROR [main:Util@166] - Last transaction was partial.```
The solution is to find the Zookeper datadir and delete the last log file with 0 size from the directory:
```bash
#docker volume list
DRIVER VOLUME NAME
local posthog_clickhouse-data
local posthog_object_storage
local posthog_postgres-data
local posthog_zookeeper-data
local posthog_zookeeper-datalog
local posthog_zookeeper-logs
# docker volume inspect posthog_zookeeper-datalog
[
{
"CreatedAt": "2023-12-07T18:05:52+01:00",
"Driver": "local",
"Labels": {
"com.docker.compose.project": "posthog",
"com.docker.compose.version": "2.13.0",
"com.docker.compose.volume": "zookeeper-datalog"
},
"Mountpoint": "/var/lib/docker/volumes/posthog_zookeeper-datalog/_data",
"Name": "posthog_zookeeper-datalog",
"Options": null,
"Scope": "local"
}
]
# cd /var/lib/docker/volumes/posthog_zookeeper-datalog/_data