Learn Openshift The Container Orchestration- Openshift 3

Learn to install Minishift, set up a local OpenShift single-node cluster on Windows 10, configure PATH, start the cluster with minishift start, and access the OpenShift dashboard.

Set up and enable the docker and oc environment for OpenShift 3, troubleshoot common setup errors, and copy the required strings and commands to configure the environment.

Master minishift commands to manage your local OpenShift environment, including version check, update, status, profile management, start/stop, file access, CPU and memory config, IP retrieval, and addons.

Learn how to create and manage multiple minishift clusters with distinct profiles and IPs, including single node versus multi node setups, starting clusters, and switching contexts.

Explore the Minishift dashboard or web console to create and deploy applications, monitor workloads, and manage networking, storage, and pipelines, while isolating projects like virtual namespaces.

Create an OpenShift port (pod) using YAML, defining API version, kind, metadata with labels, and container specs with a custom Docker image, then deploy with oc create -f pa.yaml.

Learn to deploy pods in a minishift OpenShift cluster by crafting and applying a pod YAML, then troubleshoot container restarts and security constraints including using a secure custom engine image.

Learn how the replica controller maintains a specified number of replicas, restarts pods on failure, and how to create its YAML with replicas and label selectors, plus autoscaling considerations.

Explore replica set basics in OpenShift 3 by comparing it with replica controller, using YAML to define set-based selectors with matchLabels and matchExpressions, and observe pod scaling to two replicas.

Deploy on OpenShift using a yaml deployment file via the web console with a Red Hat Quay image, and manage replicas with a replica set.

Learn to update deployments in OpenShift and perform quick rollbacks by using deployment history, undo commands, and yaml changes to revert to earlier images.

Discover how to scale OpenShift deployments by increasing or decreasing replicas, apply horizontal autoscaling with min and max replica settings, and manage CPU usage thresholds.

Enable OpenShift autoscaling by deploying the metrics server, then use horizontal and vertical pod autoscalers to monitor CPU and memory and set thresholds.

Learn how OpenShift deployment config uses yaml to manage replication controllers, with config-change and image-change triggers, automatic updates, and health checks for scalable deployments via auto scaling.

Explore OpenShift deployment strategies, including rolling, recreate, blue-green, canary, and AB testing, with emphasis on updates, downtime, and traffic control.

OpenShift restart policies: always, on failure, and never control what happens when a container exits; use always for availability, on failure for recoverable tasks, never to avoid restarts.

Create a batch file to automate setting the environment from the command prompt, avoiding repeated copy-paste and enabling automated environment setup for OpenShift.

Troubleshoot OpenShift cluster startup errors caused by network issues and observer errors. Clear cache, restart the VM, and recreate the cluster, then log into the web console.

Learn how to create and use a ConfigMap in OpenShift, via the web console or yaml, and inject configuration data into containers with environment variables.