\nIn a previous post<\/a> I described the setup of MiniShift on my laptop in order to run OpenShift for test purpose. I even pulled the Oracle Database image from the Docker Store. But the goal is to import it into OpenShift to deploy it from the Image Stream.
\n<\/p>\n
I start MiniShift on my laptop, specifying a larger disk (default is 20GB)<\/p>\n
\nC:\\Users\\Franck>minishift start --disk-size 40g\n-- Starting profile 'minishift'\n-- Check if deprecated options are used ... OK\n-- Checking if https:\/\/github.com is reachable ... OK\n-- Checking if requested OpenShift version 'v3.9.0' is valid ... OK\n-- Checking if requested OpenShift version 'v3.9.0' is supported ... OK\n-- Checking if requested hypervisor 'virtualbox' is supported on this platform ... OK\n-- Checking if VirtualBox is installed ... OK\n-- Checking the ISO URL ... OK\n-- Checking if provided oc flags are supported ... OK\n-- Starting the OpenShift cluster using 'virtualbox' hypervisor ...\n-- Minishift VM will be configured with ...\n Memory: 2 GB\n vCPUs : 2\n Disk size: 40 GB\n-- Starting Minishift VM .................................................................... OK\n-- Checking for IP address ... OK\n-- Checking for nameservers ... OK\n-- Checking if external host is reachable from the Minishift VM ...\n Pinging 8.8.8.8 ... OK\n-- Checking HTTP connectivity from the VM ...\n Retrieving http:\/\/minishift.io\/index.html ... OK\n-- Checking if persistent storage volume is mounted ... OK\n-- Checking available disk space ... 1% used OK\n Importing 'openshift\/origin:v3.9.0' ............. OK\n Importing 'openshift\/origin-docker-registry:v3.9.0' ... OK\n Importing 'openshift\/origin-haproxy-router:v3.9.0' ...... OK\n-- OpenShift cluster will be configured with ...\n Version: v3.9.0\n-- Copying oc binary from the OpenShift container image to VM ... OK\n-- Starting OpenShift cluster ...........................................................\nUsing nsenter mounter for OpenShift volumes\nUsing public hostname IP 192.168.99.105 as the host IP\nUsing 192.168.99.105 as the server IP\nStarting OpenShift using openshift\/origin:v3.9.0 ...\nOpenShift server started.\n \nThe server is accessible via web console at:\n https:⁄⁄192.168.99.105:8443\n \nYou are logged in as:\n User: developer\n Password: \n \nTo login as administrator:\n oc login -u system:admin\n<\/code><\/pre>\nMiniShift is starting a VirualBox and gets an IP address from the VirtualBox DHCP – here 192.168.99.105
\nI can access to the console https:\/\/192.168.99.105:8443 and log as developer or admin but for the moment I’m continuing in command line.<\/p>\n
At any moment I can log to the VM running OpenShift with the minishift command. Here checking the size of the disks<\/p>\n
\nC:\\Users\\Franck>minishift ssh\n \n[docker@minishift ~]$ df -h\nFilesystem Size Used Avail Use% Mounted on\n\/dev\/mapper\/live-rw 9.8G 697M 9.0G 8% \/\ndevtmpfs 974M 0 974M 0% \/dev\ntmpfs 1000M 0 1000M 0% \/dev\/shm\ntmpfs 1000M 18M 983M 2% \/run\ntmpfs 1000M 0 1000M 0% \/sys\/fs\/cgroup\n\/dev\/sr0 344M 344M 0 100% \/run\/initramfs\/live\n\/dev\/sda1 39G 1.8G 37G 5% \/mnt\/sda1\ntmpfs 200M 0 200M 0% \/run\/user\/0\ntmpfs 200M 0 200M 0% \/run\/user\/1000\n<\/code><\/pre>\nBuild the Docker image<\/h3>\n
The goal is to run in OpenShift a container from an image that has been build somewhere else. In this example I’ll not build one but use one provided on the Docker store: the Oracle Database ‘slim’ image. For this example, I’ll use the minishift VM docker, just because it is there.<\/p>\n
I have DockerTools installed on my laptop and just want to set the environment to connect to the docker server on the minishift VM. I can get the environment from minishift:<\/p>\n
\nC:\\Users\\Franck>minishift docker-env\nSET DOCKER_TLS_VERIFY=1\nSET DOCKER_HOST=tcp:\/\/192.168.99.105:2376\nSET DOCKER_CERT_PATH=C:\\Users\\Franck\\.minishift\\certs\nREM Run this command to configure your shell:\nREM @FOR \/f \"tokens=*\" %i IN ('minishift docker-env') DO @call %i\n<\/code><\/pre>\nHere is how to directly set the environemnt from it:<\/p>\n
\nC:\\Users\\Franck>@FOR \/f \"tokens=*\" %i IN ('minishift docker-env') DO @call %i\n<\/code><\/pre>\nNow my docker commands will connect to this docker server. Here are the related info, minishift is already running several containers there for its own usage:<\/p>\n
\nC:\\Users\\Franck>docker info\nContainers: 9\n Running: 7\n Paused: 0\n Stopped: 2\nImages: 6\nServer Version: 1.13.1\nStorage Driver: overlay2\n Backing Filesystem: xfs\n Supports d_type: true\n Native Overlay Diff: true\nLogging Driver: journald\nCgroup Driver: systemd\nPlugins:\n Volume: local\n Network: bridge host macvlan null overlay\n Log:\nSwarm: inactive\nRuntimes: docker-runc runc\nDefault Runtime: docker-runc\nInit Binary: docker-init\ncontainerd version: (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1)\nrunc version: e9c345b3f906d5dc5e8100b05ce37073a811c74a (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f)\ninit version: N\/A (expected: 949e6facb77383876aeff8a6944dde66b3089574)\nSecurity Options:\n seccomp\n Profile: default\n selinux\nKernel Version: 3.10.0-862.6.3.el7.x86_64\nOperating System: CentOS Linux 7 (Core)\nOSType: linux\nArchitecture: x86_64\nCPUs: 2\nTotal Memory: 1.953GiB\nName: minishift\nID: U7IQ:TE3X:HSGK:3ES2:IO6G:A7VI:3KUU:YMBC:3ZIR:QYUL:EQUL:VFMS\nDocker Root Dir: \/var\/lib\/docker\nDebug Mode (client): false\nDebug Mode (server): false\nUsername: pachot\nRegistry: https:\/\/index.docker.io\/v1\/\nLabels:\n provider=virtualbox\nExperimental: false\nInsecure Registries:\n 172.30.0.0\/16\n 127.0.0.0\/8\nLive Restore Enabled: false\n<\/code><\/pre>\nAs for this example, I’ll use the Oracle Database image, I need to log to the Docker Store to prove that I accept the licensing conditions:<\/p>\n
\nC:\\Users\\Franck>docker login\nLogin with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https:\/\/hub.docker.com to create one.\nUsername:\nPassword:\nLogin Succeeded\n<\/code><\/pre>\nI pull the image, takes some time because ‘slim’ means 2GB with Oracle Database.<\/p>\n
\nC:\\Users\\Franck>docker pull store\/oracle\/database-enterprise:12.2.0.1-slim\nTrying to pull repository docker.io\/store\/oracle\/database-enterprise ...\n12.2.0.1-slim: Pulling from docker.io\/store\/oracle\/database-enterprise\n4ce27fe12c04: Pull complete\n9d3556e8e792: Pull complete\nfc60a1a28025: Pull complete\n0c32e4ed872e: Pull complete\nbe0a1f1e8dfd: Pull complete\nDigest: sha256:dbd87ae4cc3425dea7ba3d3f34e062cbd0afa89aed2c3f3d47ceb5213cc0359a\nStatus: Downloaded newer image for docker.io\/store\/oracle\/database-enterprise:12.2.0.1-slim\n<\/code><\/pre>\nHere is the image:<\/p>\n
\nC:\\Users\\Franck>docker images\nREPOSITORY TAG IMAGE ID CREATED SIZE\nopenshift\/origin-web-console v3.9.0 aa12a2fc57f7 7 weeks ago 495MB\nopenshift\/origin-docker-registry v3.9.0 0530b896b578 7 weeks ago 465MB\nopenshift\/origin-haproxy-router v3.9.0 6b85d7aec983 7 weeks ago 1.28GB\nopenshift\/origin-deployer v3.9.0 39ee47797d2e 7 weeks ago 1.26GB\nopenshift\/origin v3.9.0 12a3f005312b 7 weeks ago 1.26GB\nopenshift\/origin-pod v3.9.0 6e08365fbba9 7 weeks ago 223MB\nstore\/oracle\/database-enterprise 12.2.0.1-slim 27c9559d36ec 12 months ago 2.08GB\n<\/code><\/pre>\nMy minishift VM disk has increased by 2GB:<\/p>\n
\nC:\\Users\\Franck>minishift ssh -- df -Th \/mnt\/sda1\nFilesystem Type Size Used Avail Use% Mounted on\n\/dev\/sda1 xfs 39G 3.9G 35G 11% \/mnt\/sda1\n<\/code><\/pre>\nPush the image to OpenShift registry<\/h3>\n
OpenShift has its integrated container registry from which the Docker images are visible to Image Stream.
\nHere is the address of the registry:<\/p>\n
\nC:\\Users\\Franck>minishift openshift registry\n172.30.1.1:5000\n<\/code><\/pre>\nI’ll run some OpenShift commands and the path to the minishift cache for ‘oc’ can be set with:<\/p>\n
\nC:\\Users\\Franck>minishift oc-env\nSET PATH=C:\\Users\\Franck\\.minishift\\cache\\oc\\v3.9.0\\windows;%PATH%\nREM Run this command to configure your shell:\nREM @FOR \/f \"tokens=*\" %i IN ('minishift oc-env') DO @call %i\n \nC:\\Users\\Franck>@FOR \/f \"tokens=*\" %i IN ('minishift oc-env') DO @call %i\n<\/code><\/pre>\nI am still connected as developer to OpenShift:<\/p>\n
\nC:\\Users\\Franck>oc whoami\ndeveloper\n<\/code><\/pre>\nand I get the login token:<\/p>\n
\nC:\\Users\\Franck>oc whoami -t\nlde5zRPHjkDyaXU9ninZ6zX50cVu3liNBjQVinJdwFc\n<\/code><\/pre>\nI use this token to login to the OpenShift registry with docker in order to be able to push the image:<\/p>\n
\nC:\\Users\\Franck>docker login -u developer -p lde5zRPHjkDyaXU9ninZ6zX50cVu3liNBjQVinJdwFc 172.30.1.1:5000\nWARNING! Using --password via the CLI is insecure. Use --password-stdin.\nLogin Succeeded\n<\/code><\/pre>\nI create a new project to import the image to:<\/p>\n
\nC:\\Users\\Franck>oc new-project oracle --display-name=Oracle\nNow using project \"oracle\" on server \"https:\/\/192.168.99.105:8443\".\n \nYou can add applications to this project with the 'new-app' command. For example, try:\n \n oc new-app centos\/ruby-22-centos7~https:\/\/github.com\/openshift\/ruby-ex.git\n \nto build a new example application in Ruby.\n<\/code><\/pre>\nThis can also be done from the GUI. Here is the project on the right:
\n![\"CaptureOpenShiftProject\"](\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/CaptureOpenShiftProject.png\")
<\/a><\/p>\nI tag the image with the name of the registry (172.30.1.1:5000) and the name of the project (oracle) and add an image name, so that the full name is: 172.30.1.1:5000\/oracle\/ora122slim<\/p>\n
\nC:\\Users\\Franck>docker tag store\/oracle\/database-enterprise:12.2.0.1-slim 172.30.1.1:5000\/oracle\/ora122slim\n<\/code><\/pre>\nWe can see this tagged image<\/p>\n
\nC:\\Users\\Franck>docker images\nREPOSITORY TAG IMAGE ID CREATED SIZE\nopenshift\/origin-web-console v3.9.0 aa12a2fc57f7 7 weeks ago 495MB\nopenshift\/origin-docker-registry v3.9.0 0530b896b578 7 weeks ago 465MB\nopenshift\/origin-haproxy-router v3.9.0 6b85d7aec983 7 weeks ago 1.28GB\nopenshift\/origin-deployer v3.9.0 39ee47797d2e 7 weeks ago 1.26GB\nopenshift\/origin v3.9.0 12a3f005312b 7 weeks ago 1.26GB\nopenshift\/origin-pod v3.9.0 6e08365fbba9 7 weeks ago 223MB\n172.30.1.1:5000\/oracle\/ora122slim latest 27c9559d36ec 12 months ago 2.08GB\nstore\/oracle\/database-enterprise 12.2.0.1-slim 27c9559d36ec 12 months ago 2.08GB\n<\/code><\/pre>\nNote that it is the same IMAGE ID and doesn’t take more space:<\/p>\n
\nC:\\Users\\Franck>minishift ssh -- df -Th \/mnt\/sda1\nFilesystem Type Size Used Avail Use% Mounted on\n\/dev\/sda1 xfs 39G 3.9G 35G 11% \/mnt\/sda1\n<\/code><\/pre>\nThen I’m finally ready to push the image to the OpenShift docker registry:<\/p>\n
\nC:\\Users\\Franck>docker push 172.30.1.1:5000\/oracle\/ora122slim\nThe push refers to a repository [172.30.1.1:5000\/oracle\/ora122slim]\n066e811424fb: Pushed\n99d7f2451a1a: Pushed\na2c532d8cc36: Pushed\n49c80855196a: Pushed\n40c24f62a02f: Pushed\nlatest: digest: sha256:25b0ec7cc3987f86b1e754fc214e7f06761c57bc11910d4be87b0d42ee12d254 size: 1372\n<\/code><\/pre>\nThis is a copy, and takes an additional 2GB:<\/p>\n
\nC:\\Users\\Franck>minishift ssh -- df -Th \/mnt\/sda1\nFilesystem Type Size Used Avail Use% Mounted on\n\/dev\/sda1 xfs 39G 5.4G 33G 14% \/mnt\/sda1\n<\/code><\/pre>\nDeploy the image<\/h3>\n
Finally, I can deploy the image as it is visible in the GUI:
\n![\"CaptureOpenShiftImport\"](\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/CaptureOpenShiftImport.png\")
<\/a><\/p>\nI choose to deploy from fommand line:<\/p>\n
\nC:\\Users\\Franck>oc new-app --image-stream=ora122slim --name=ora122slimdeployment\n--> Found image 27c9559 (12 months old) in image stream \"oracle\/ora122slim\" under tag \"latest\" for \"ora122slim\"\n \n * This image will be deployed in deployment config \"ora122slimdeployment\"\n * Ports 1521\/tcp, 5500\/tcp will be load balanced by service \"ora122slimdeployment\"\n * Other containers can access this service through the hostname \"ora122slimdeployment\"\n * This image declares volumes and will default to use non-persistent, host-local storage.\n You can add persistent volumes later by running 'volume dc\/ora122slimdeployment --add ...'\n\n--> Creating resources ...\n imagestreamtag \"ora122slimdeployment:latest\" created\n deploymentconfig \"ora122slimdeployment\" created\n service \"ora122slimdeployment\" created\n--> Success\n Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:\n 'oc expose svc\/ora122slimdeployment'\n Run 'oc status' to view your app.\n<\/code><\/pre>\n![\"CaptureOpenShiftDeploy\"](\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/CaptureOpenShiftDeploy.png\")
<\/a><\/p>\nI expose the service:<\/p>\n
\nC:\\Users\\Franck>oc expose service ora122slimdeployment\nroute \"ora122slimdeployment\" exposed\n<\/code><\/pre>\n\/bin\/bash: \/home\/oracle\/setup\/dockerInit.sh: Permission denied<\/h3>\n
![\"CaptureOpenShiftCrash\"](\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/CaptureOpenShiftCrash.png\")
<\/a><\/p>\n![\"CaptureOpenShiftOracle\"](\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/CaptureOpenShiftOracle.png\")
<\/a><\/p>\n