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--- tech:openshift:start [2018/06/07 16:33]
admin
+++ tech:openshift:start [2019/01/05 16:52] (current)
rk4n3
@@ Line 1: / Line 1: @@
 <typo fs:xx-large; fw: bold;>OpenShift</typo>
+<code>oc import-image <NAME OF STREAM></code>
 ====== Resources ======
+[[https://docs.docker.com/develop/develop-images/dockerfile_best-practices|Dockerfile Best Practices]] \\
 [[https://www.clouda.ca/blog/general/openshift-on-centos-7-quick-installation|OpenShift on CentOS 7]] \\
 [[https://github.com/openshift/origin#getting-started|OpenShift ''Getting Started'' on GitHub]] \\
@@ Line 10: / Line 14: @@
 [[http://sudhaker.com/10/install-the-latest-openshift-v3-on-centos-7-1|Sudhaker's blog]] \\
+  * Packages needed:
+    * ''yum install go''
+    * Install ''S2I'' from: [[https://github.com/openshift/source-to-image/releases]]
+  * ?
+=== Generate Docker Image ===
+<code># Gen image via s2i ... using python container
+IMGBASE=s2i-python-container
+mkdir s2iloadgen
+s2i create ${IMGBASE} s2iloadgen</code>
+=== Docker Cheat-Sheet ===
+  * List all Bluejay-related images:<code>docker images | grep -i bluejay</code>
+  * Start container:<code>docker run -d -P --name loadgen001 bluejay-loadgen</code>
+  * Show port mapping:<code>docker port loadgen001 22</code>
+  * Stop container:<code>docker container stop loadgen001</code>
+  * Remove container:<code>docker container rm loadgen001</code>
+  * Remove image:<code>docker image rm bluejay-loadgen</code>
+------
+===== Example: Resurrect Bluejay in OpenShift =====
+  * Set up OpenShift cluster, and start with ''rc.openshift start''
+    * The ''rc.openshift'' wrapper calls ''oc cluster up'' with args
+  * Initialize service account<code>oc create serviceaccount bluejay
+oc policy add-role-to-user system:image-builder -z bluejay
+oc policy add-role-to-user admin -z bluejay
+oc sa get-token bluejay</code>
+    * Populate the token into ''~bluejay/.bluejayrc''
+  * Ensure access to OpenShift docker repo<code>docker login -u yourlogin -p $(oc whoami -t) 172.30.1.1:5000</code>
+  * Build, tag, and push JMeter image<code>cd ~/src/bluejay/s2ijm ; make
+docker tag <newimage> 172.30.1.1:5000/bluejay/jmeter
+docker push 172.30.1.1:5000/bluejay/jmeter</code>
+  * Build, tag, and push Locust image<code>cd ~/src/bluejay/s2iloc ; make
+docker tag <newimage> 172.30.1.1:5000/bluejay/locust
+docker push 172.30.1.1:5000/bluejay/locust</code>
+  * Build, tag, and push Maven image<code>cd ~/src/bluejay/s2imvn ; make
+docker tag <newimage> 172.30.1.1:5000/bluejay/maven
+docker push 172.30.1.1:5000/bluejay/maven</code>
+  * Build, tag, and push Gatling image<code>cd ~/src/bluejay/s2igat ; make
+docker tag <newimage> 172.30.1.1:5000/bluejay/gatling
+docker push 172.30.1.1:5000/bluejay/gatling</code>
+  * Create image streams<code>cd ~/src/bluejay/etc
+oc create -f loadctl.json
+oc create -f loadloc.json
+oc create -f loadmvn.json
+oc create -f loadgat.json</code>
+  * Create load-gen build configs \\ //Remember to set LDAP credentials in YAML files//<code>cd ~/src/bluejay/etc
+oc create -f bld-loadctl.yaml
+oc create -f bld-loadloc.yaml
+oc create -f bld-loadmvn.yaml
+oc create -f bld-loadgat.yaml</code>
+  * Verify build completions and image streams
+  * Add OAPT storage \\ //Remember to make it "shared", use name like ''oaptpubrpt201''//
+  * Add OAPT application
+    * Add OAPT storage at mount path ''/opt/app-root/pub''
+------
 ====== Trivia ======
+===== Installation: Docker & OC CLI =====
+  * In /etc/yum.repos.d/docker.repo<code>[dockerrepo]
+name=Docker Repository
+baseurl=https://yum.dockerproject.org/repo/main/centos/7
+enabled=1
+gpgcheck=1
+gpgkey=https://yum.dockerproject.org/gpg</code>
+  * ''yum install docker-engine''
+  * ''usermod -aG docker msamud1''
+  * ''chkconfig docker on''
+  * Install S2I:  download and extract to /usr/local/bin ...<code>wget https://github.com/openshift/source-to-image/releases/download/v1.1.10/source-to-image-v1.1.10-27f0729d-linux-amd64.tar.gz</code>
+  * OpenShift CLI client (oc):
+    * Requires active RHEL subscription to download
+    * Once downloaded, extract "oc" from archive into /usr/local/bin
+===== PoC/Exploration Notes =====
+==== Some URLs researched ... ====
+http://www.testautomationguru.com/jmeter-distributed-load-testing-using-docker/ \\
+https://hub.docker.com/_/openjdk/ \\
+https://eleanordare.com/blog/2018/5/3/using-a-jenkins-pipeline-to-run-jmeter-tests-in-openshift-bkba6 \\
+https://eleanordare.com/blog/2017/6/14/using-a-jenkins-pipeline-to-run-jmeter-tests-in-openshift \\
+https://blog.openshift.com/remotely-push-pull-container-images-openshift \\
+https://docs.openshift.org/latest/dev_guide/jobs.html \\
+https://docs.openshift.com/enterprise/3.0/architecture/core_concepts/builds_and_image_streams.html \\
+https://blog.openshift.com/running-any-docker-image-on-openshift-origin/ \\
+https://docs.openshift.com/online/architecture/core_concepts/builds_and_image_streams.html#pipeline-build \\
+https://docs.openshift.com/online/dev_guide/application_lifecycle/new_app.html#dev-guide-new-app \\
+https://docs.openshift.com/online/dev_guide/index.html \\
+https://docs.openshift.com/online/dev_guide/builds/build_inputs.html#image-source \\
+https://docs.openshift.com/online/dev_guide/application_lifecycle/new_app.html \\
+https://blog.openshift.com/getting-any-docker-image-running-in-your-own-openshift-cluster/ \\
+https://blog.openshift.com/openshift-jobs \\
+https://docs.openshift.com/online/rest_api/apis-batch/v1.Job.html \\
+==== Initial PoC at Optum's OpenShift ====
+  * Ensure that docker-engine is installed on Linux XaaS VM
+  * Log in to DTR (Docker Trusted Registry) \\ ''docker login docker.optum.com''
+  * Pull existing repository (previously created in web GUI) \\ ''docker pull docker.optum.com/msamud1/bluejay-jmeter''
+  * Build new image using S2I (S2I build is another topic)
+  * Tag new image in local registry \\ ''docker tag <newimageid> docker.optum.com/msamud1/bluejay-jmeter''
+  * Push to DTR \\ ''docker push docker.optum.com/msamud1/bluejay-jmeter''
+//**NOTE:** these commands assume being run from $HOME/src/bluejay ... // \\
+  * Log in to Optum's OpenShift (this is elk river non-prod) \\ ''oc login https://ocp-elr-core-nonprod.optum.com''
+  * Create image stream for base JMeter builder image \\ ''oc create -f ./etc/jmeter.yaml''
+  * Create image stream for app-specific load controller \\ ''oc create -f ./etc/timbrado.json''
+  * Create image stream for load generator(s) \\ ''oc create -f ./etc/loadgen.json''
+  * Create BuildConfig for app-specific load controller \\ ''oc create -f ./etc/bld-timbrado.json''
+  * Create BuildConfig for load generator(s) \\ ''oc create -f ./etc/bld-loadgen.json''
+  * Run a job: \\ ''oc create -f ./etc/job-launch.yaml''
+===== Misc ... =====
 ==== Container DNS ====
 In order for containers to be able to resolve external names, change the ''dnsIP'' value in ''/var/lib/origin/openshift.local.config/node-localhost/node-config.yaml'' to the real LAN's DNS nameserver \\
+==== SSH Key Initialization ====
+<code>
+/usr/bin/ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N ''
+/usr/bin/ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N ''
+/usr/bin/ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
+/usr/bin/ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -N ''
+/usr/bin/ssh-keygen -A
+</code>
+==== Interesting Resources ====
+  * [[https://hub.docker.com/r/jdeathe/centos-ssh]]
  \\

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