All the configuration is done through the environment.
These are the credentials used to authenticate the HTTP dashboard; both take a space-delimited list
MUNIN_USERSMUNIN_PASSWORDS
Email credentials used to send emails (like alerts)
SMTP_HOSTSMTP_PORTSMTP_USERNAMESMTP_PASSWORDSMTP_USE_TLSSMTP_ALWAYS_SENDSMTP_MESSAGE
Email addressed used for the alerts, require SMTP credentials.
ALERT_RECIPIENTALERT_SENDER
The port is always optional, default is 4949
NODESformat:name1:ip1[:port1] name2:ip2[:port2] …SNMP_NODESformat:name1:ip1[:port1]…SSH_NODESformat:name1:ip1[:port1]…
Container is listening on the port 8080
For a bit of persistency
- /var/log/munin -> logs
- /var/lib/munin -> db
- /var/run/munin -> lock and pid files
- /var/cache/munin -> file deserved by HTTP
docker build -t munin-server .
docker run -d \
-p 8080:8080 \
-v /var/log/munin:/var/log/munin \
-v /var/lib/munin:/var/lib/munin \
-v /var/run/munin:/var/run/munin \
-v /var/cache/munin:/var/cache/munin \
-e MUNIN_USERS='http-user another-user' \
-e MUNIN_PASSWORDS='secret-password other-users-password' \
-e SMTP_HOST=smtp.example.com \
-e SMTP_PORT=587 \
-e SMTP_USERNAME=smtp-username \
-e SMTP_PASSWORD=smtp-password \
-e SMTP_USE_TLS=false \
-e SMTP_ALWAYS_SEND=true \
-e SMTP_MESSAGE='[${var:group};${var:host}] -> ${var:graph_title} -> warnings: ${loop<,>:wfields ${var:label}=${var:value}} / criticals: ${loop<,>:cfields ${var:label}=${var:value}}' \
-e [email protected] \
-e [email protected] \
-e NODES="server1:10.0.0.1 server2:10.0.0.2" \
-e SNMP_NODES="router1:10.0.0.254:9999" \
munin-server
You can now reach your munin-server on port 8080 of your host. It will display at the first run:
Munin has not run yet. Please try again in a few moments.
Every 5 minutes munin-server will interrogate its nodes and build the graphs and store the data. That's only after the first data fetching operation that the first graphs will appear.