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-# OpenShift health checks
-
-This directory contains Ansible playbooks for detecting potential problems prior
-to an install, as well as health checks to run on existing OpenShift clusters.
-
-Ansible's default operation mode is to fail fast, on the first error. However,
-when performing checks, it is useful to gather as much information about
-problems as possible in a single run.
-
-Thus, the playbooks run a battery of checks against the inventory hosts and
-gather intermediate errors, giving a more complete diagnostic of the state of
-each host. If any check failed, the playbook run will be marked as failed.
-
-To facilitate understanding the problems that were encountered, a custom
-callback plugin summarizes execution errors at the end of a playbook run.
-
-## Available playbooks
-
-1. Pre-install playbook ([pre-install.yml](pre-install.yml)) - verifies system
- requirements and look for common problems that can prevent a successful
- installation of a production cluster.
-
-2. Diagnostic playbook ([health.yml](health.yml)) - check an existing cluster
- for known signs of problems.
-
-3. Certificate expiry playbooks ([certificate_expiry](certificate_expiry)) -
- check that certificates in use are valid and not expiring soon.
-
-4. Adhoc playbook ([adhoc.yml](adhoc.yml)) - use it to run adhoc checks or to
- list existing checks.
- See the [next section](#the-adhoc-playbook) for a usage example.
-
-## Running
-
-With a [recent installation of Ansible](../../../README.md#setup), run the playbook
-against your inventory file. Here is the step-by-step:
-
-1. If you haven't done it yet, clone this repository:
-
- ```console
- $ git clone https://github.com/openshift/openshift-ansible
- $ cd openshift-ansible
- ```
-
-2. Install the [dependencies](../../../README.md#setup)
-
-3. Run the appropriate playbook:
-
- ```console
- $ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/pre-install.yml
- ```
-
- or
-
- ```console
- $ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/health.yml
- ```
-
- or
-
- ```console
- $ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/certificate_expiry/default.yaml -v
- ```
-
-### The adhoc playbook
-
-The adhoc playbook gives flexibility to run any check or a custom group of
-checks. What will be run is determined by the `openshift_checks` variable,
-which, among other ways supported by Ansible, can be set on the command line
-using the `-e` flag.
-
-For example, to run the `docker_storage` check:
-
-```console
-$ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/adhoc.yml -e openshift_checks=docker_storage
-```
-
-To run more checks, use a comma-separated list of check names:
-
-```console
-$ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/adhoc.yml -e openshift_checks=docker_storage,disk_availability
-```
-
-To run an entire class of checks, use the name of a check group tag, prefixed by `@`. This will run all checks tagged `preflight`:
-
-```console
-$ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/adhoc.yml -e openshift_checks=@preflight
-```
-
-It is valid to specify multiple check tags and individual check names together
-in a comma-separated list.
-
-To list all of the available checks and tags, run the adhoc playbook without
-setting the `openshift_checks` variable:
-
-```console
-$ ansible-playbook -i <inventory file> playbooks/byo/openshift-checks/adhoc.yml
-```
-
-## Running in a container
-
-This repository is built into a Docker image including Ansible so that it can
-be run anywhere Docker is available, without the need to manually install dependencies.
-Instructions for doing so may be found [in the README](../../../README_CONTAINER_IMAGE.md).