Differences

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--- openshift [2018/02/21 10:31] – [OpenShift CICD] skipidar
+++ openshift [2020/12/27 20:35] (current) – external edit 127.0.0.1
@@ Line 134: / Line 134: @@
-== Update strategies ==
+== Update Rollout strategies ==
 |Rolling Update|Pre life cycle hook. Scale up/down new/old pods one by one. Wait for readiness checks. Post life cycle hooks. No downtime.|
@@ Line 140: / Line 140: @@
+== Concepts ==
 | BuildConfig |<WRAP>
@@ Line 151: / Line 152: @@
   *     Pipeline build (Tech-preview in OCP 3.3)
-    For Docker and S2I builds, resulting objects are runnable images.
+For Docker and S2I builds, resulting objects are runnable images.
-    For custom builds, resulting object are whatever builder image author specified.
+For custom builds, resulting object are whatever builder image author specified.
+</WRAP>|
+| Source-to-Image (S2I) Build|<WRAP>
+  * Source-to-Image (S2I) is tool for building reproducible Docker images
+  * Produces ready-to-run images by injecting application source into Docker image and assembling new Docker image
+  * New image incorporates base image (builder) and built source and is ready to use with docker run command
+Reproducability. S2I supports incremental builds, which reuse previously downloaded dependencies, previously built artifacts, etc.
+Security. Builds and runs are executed as root, which may be exposed. S2I can execute commands with less rights.
+</WRAP>|
+| Image Stream |<WRAP>
+Docker images from different sources, identified by the same tag. \\
+Can be monitored, to trigger a build as a result.
+</WRAP>|
+| Jenkins pipeline |<WRAP>
+  * A Jenkins can be used to build artifacts via OPenShift.
+  * A Jenkins strategy is chose in BuildConfig
+  * A Jenkins-Pipeline is defined as code in BuildConfig
+During the build the following will then happen
+  * A Jenkins will be started in a container and reused by all Jobs with the Jenkins-build-strategy.
+  * A Pipeline will be created.
+  * An image will be build.
+  * An image will be put into the registry.
+  * Then optionally, via trigers, the pod can be replaced by new pods with the container from new image.
+Build via OpenShift pipelines:
+{{https://developers.redhat.com/blog/wp-content/uploads/2016/12/FireShot-Capture-50-OpenShift-Web-Console_-https___192.168.123.1_8443_console-1024x174.png}}
+More:
+https://developers.redhat.com/blog/2017/01/09/using-pipelines-in-openshift-3-3-for-cicd/
+</WRAP>|
+| XXX |<WRAP>
+</WRAP>|
+| XXX |<WRAP>
 </WRAP>|
 | XXX |<WRAP>