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diff --git a/playbooks/byo/openshift-checks/README.md b/playbooks/byo/openshift-checks/README.md new file mode 100644 index 000000000..4b2ff1f94 --- /dev/null +++ b/playbooks/byo/openshift-checks/README.md @@ -0,0 +1,65 @@ +# 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 have +Ansible 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. + +## 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. 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 + ``` + +## Running via Docker image + +This repository is built into a Docker image including Ansible so that it can +be run anywhere Docker is available. Instructions for doing so may be found +[in the README](../../README_CONTAINER_IMAGE.md). + |