Monit - Docker/Kubernetes - UNIX Systems Management
Run Monit inside docker ( )
Monit is a free open source utility for managing and monitoring, processes, programs, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations.
Supported architectures
- amd64
- arm32v6 (Raspberry Pi) diogopms/monit-docker-kubernetes:arm32v6-latest
Docker setup
Install docker: https://docs.docker.com/engine/installation/ Install docker compose: https://docs.docker.com/compose/install/ Docker documentation: https://docs.docker.com/
Build-in docker image
- build docker image
docker build -t monit . - start monit:
docker run -ti -p 2812:2812 -v $(pwd)/monitrc:/etc/monitrc monit
ENV VARS
| ENVs | Description |
|---|---|
| SLACK_URL | Webhook url for slack notifications (required for slack) |
| PUSH_OVER_TOKEN | Push over api token (required for pushover) |
| PUSH_OVER_USER | Push over api user (requiredfor pushover) |
| DEBUG | If set with 1 it will put monit in verbose mode |
Docker Hub image
- pull docker image from docker hub:
docker pull diogopms/monit-docker-kubernetes - start monit:
docker run -ti -p 2812:2812 -v $(pwd)/monitrc:/etc/monitrc diogopms/monit-docker-kubernetes - create a docker container:
#Normal mode (support slack and pushover)
docker run -it \
-p 2812:2812 \
-v $(pwd)/monitrc:/etc/monitrc \
-e "SLACK_URL=" \
-e "PUSH_OVER_TOKEN=" \
-e "PUSH_OVER_USER=" \
diogopms/monit-docker-kubernetes
#Debug mode
docker run -it \
-p 2812:2812 \
-v $(pwd)/monitrc:/etc/monitrc \
-e "SLACK_URL=" \
-e "PUSH_OVER_TOKEN=" \
-e "PUSH_OVER_USER=" \
-e "DEBUG=1" \
diogopms/monit-docker-kubernetes
Example monitrc (Slack)
set daemon 20
set log syslog
# Web interface
# set httpd port 2812 and allow admin:monit
check host www.google.com with address www.google.com
if failed
port 443 protocol https
request /
status = 200
for 2 cycles
then exec "/bin/slack"
else if succeeded then exec "/bin/slack"
EOF
Example monitrc (Pushover)
set daemon 20
set log syslog
# Web interface
# set httpd port 2812 and allow admin:monit
check host www.google.com with address www.google.com
if failed
port 443 protocol https
request /
status = 200
for 2 cycles
then exec "/bin/pushover"
else if succeeded then exec "/bin/pushover"
EOF
Supported notifications
Kubernetes
Troubleshooting
If when starting Monit returns the following message: The control file '/etc/monitrc' permission 0755 is wrong, maximum 0700 allowed, simply give the appropriate permissions to monitrc: chmod 700 monitrc.