tripleo-common/healthcheck

Health check commands

The scripts in this directory are meant to implement the container-healthcheck blueprint. They are written to be compatible with the Docker HEALTHCHECK api.

The scripts expect to source /usr/share/tripleo-common/healthcheck/common.sh. If you want to run scripts without installing to that file, you can set the HEALTHCHECKS_DIR environment variable, e.g:

    $ export HEALTHCHECKS_DIR=$PWD
    $ ./heat-api
    {"versions": [{"status": "CURRENT", "id": "v1.0", "links": [{"href": "http://192.168.24.1:8004/v1/", "rel": "self"}]}]}
    300 192.168.24.1:8004 0.002 seconds

Notes about changing healthchecks

Because healthchecks are provided via a package when building containers, you cannot rename or remove a health check in combination with a change to a, file in tripleo-common/container-images/. Changes need to be backwards and forwards compatible when updating healthchecks. You may also need to land a new healthcheck first and update the container build process in a subsequent change that lands later.