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=Install=
=Install=
==Install Docker==
You will need to google the way to get the repository
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
apt-get install docker.io -y
sudo apt update && sudo apt -y install docker-ce
systemctl start docker
systemctl start docker
systemctl enable docker
systemctl enable docker
systemctl status docker
systemctl status docker
 
</syntaxhighlight>
==Set your user to user docker group==
<syntaxhighlight lang="bash">
sudo usermod -aG docker $USER
</syntaxhighlight>
==Allow insecure Registry==
<syntaxhighlight lang="bash">
sudo cat << EOF | sudo tee /etc/docker/daemon.json
{
    "insecure-registries" : [ "172.30.0.0/16" ]
}
EOF
</syntaxhighlight>
==Restart Docker==
<syntaxhighlight lang="bash">
systemctl restart docker
</syntaxhighlight>
==Get OpenShift and copy binaries==
Get the package
<syntaxhighlight lang="bash">
wget https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
wget https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
tar -xvzf openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
tar -xvzf openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
cd openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit
cd openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit
sudo mv oc kubectl /usr/local/bin/
sudo mv oc kubectl /usr/local/bin/
 
</syntaxhighlight>
sudo mkdir /opt/openshift
==Make Directory==
sudo cd /opt/openshift
The directories are too long so we need to run the code from /opt/openshift
sudo oc cluster up  --public-hostname=your-server-ip
<syntaxhighlight lang="bash">
cp -r * /opt/openshift
cd /opt/openshift
oc cluster up  --public-hostname=your-server-ip
</syntaxhighlight>
==Fix DNS==
'''IMPORTANT'''
Edit the file: openshift.local.clusterup/node/node-config.yml and set dnsIP
<syntaxhighlight lang="bash">
dnsIP: "8.8.8.8"
</syntaxhighlight>
Edit the file openshift.local.clusterup/kubedns/resolv.conf and add
<syntaxhighlight lang="bash">
nameserver 8.8.8.8
nameserver 8.8.4.4
</syntaxhighlight>
Also make sure you have the DNS options inside the docker config file
<br>
Edit /etc/docker/daemon.json and add this but do not forget the comma if it already has something
<syntaxhighlight lang="bash">
"dns": ["8.8.8.8", "8.8.4.4"]
</syntaxhighlight>
</syntaxhighlight>


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sudo oc cluster up
sudo oc cluster up
</syntaxhighlight>
</syntaxhighlight>
=Create And Build a Project=
==Example 1==
<syntaxhighlight lang="bash">
// Create project
oc new-project test01 --display-name="Test 01 Project" --description="My 01 Test Project Description"
// Add app
oc new-app centos/ruby-25-centos7~https://github.com/sclorg/ruby-ex.git
// Look at the logs
oc logs -f bc/ruby-ex
// Resubmit Build
oc start-build ruby-ex
</syntaxhighlight>
=Pods=
=Pods=
OpenShift Pods contain containers. It is recommended one pod per container.
OpenShift Pods contain containers. It is recommended one pod per container.
Line 38: Line 92:
**Support for several programming language
**Support for several programming language
**Customizable
**Customizable
=List of 3.1 commands=
*Basic CLI Operations
**types
**login
**logout
**new-project
**new-app
**status
**project
*Application Modification CLI Operations
**get
**describe
**edit
**env
**volume
**label
**expose
**delete
*Build and Deployment CLI Operations
**start-build
**deploy
**rollback
**new-build
**cancel-build
**import-image
**scale
**tag
*Advanced Commands
**create
**update
**process
**run
**export
**policy
**secrets
*Troubleshooting and Debugging CLI Operations
**logs
**exec
**rsh
**rsync
**port-forward
**proxy
=oc commands=
*sudo oc login
Login so you can do stuff
*sudo oc config view
View configured clusters
*oc project
View current project
*oc status
Show status
*oc get projects
Show all projects
*oc delete project <project_name>
Deleting a project
*oc get pods
Shows the status of the pods
*oc describe pod iainapp01-1-build
Shows status of an individual pod

Latest revision as of 07:07, 24 December 2020

Install

Install Docker

You will need to google the way to get the repository 

sudo apt update && sudo apt -y install docker-ce
systemctl start docker
systemctl enable docker
systemctl status docker

Set your user to user docker group

sudo usermod -aG docker $USER

Allow insecure Registry

sudo cat << EOF | sudo tee /etc/docker/daemon.json 
 {
     "insecure-registries" : [ "172.30.0.0/16" ]
 }
EOF

Restart Docker

systemctl restart docker

Get OpenShift and copy binaries

Get the package 

wget https://github.com/openshift/origin/releases/download/v3.11.0/openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
tar -xvzf openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit.tar.gz
cd openshift-origin-client-tools-v3.11.0-0cbc58b-linux-64bit
sudo mv oc kubectl /usr/local/bin/

Make Directory

The directories are too long so we need to run the code from /opt/openshift 

cp -r * /opt/openshift
cd /opt/openshift
oc cluster up  --public-hostname=your-server-ip

Fix DNS

IMPORTANT Edit the file: openshift.local.clusterup/node/node-config.yml and set dnsIP 

dnsIP: "8.8.8.8"

Edit the file openshift.local.clusterup/kubedns/resolv.conf and add 

nameserver 8.8.8.8
nameserver 8.8.4.4

Also make sure you have the DNS options inside the docker config file
Edit /etc/docker/daemon.json and add this but do not forget the comma if it already has something 

"dns": ["8.8.8.8", "8.8.4.4"]

Start Stop Cluster

sudo oc cluster down
sudo oc cluster up

Create And Build a Project

Example 1

// Create project
oc new-project test01 --display-name="Test 01 Project" --description="My 01 Test Project Description"
// Add app
oc new-app centos/ruby-25-centos7~https://github.com/sclorg/ruby-ex.git
// Look at the logs
oc logs -f bc/ruby-ex
// Resubmit Build
oc start-build ruby-ex

Pods

OpenShift Pods contain containers. It is recommended one pod per container.

Deployment

There are 3 ways to deploy an openshift container.

  • Predefined containers
    • Manual
    • Dockerfile
    • Yaml
    • Most flexible
  • Openshift Application catalogue
    • Predefined application
    • Easy to deploy
    • Easy to integrate into custom applications
  • Source to Image (s2i)
    • Fastest to deploy
    • Support for several programming language
    • Customizable

List of 3.1 commands

  • Basic CLI Operations
    • types
    • login
    • logout
    • new-project
    • new-app
    • status
    • project
  • Application Modification CLI Operations
    • get
    • describe
    • edit
    • env
    • volume
    • label
    • expose
    • delete
  • Build and Deployment CLI Operations
    • start-build
    • deploy
    • rollback
    • new-build
    • cancel-build
    • import-image
    • scale
    • tag
  • Advanced Commands
    • create
    • update
    • process
    • run
    • export
    • policy
    • secrets
  • Troubleshooting and Debugging CLI Operations
    • logs
    • exec
    • rsh
    • rsync
    • port-forward
    • proxy

oc commands

  • sudo oc login

Login so you can do stuff

  • sudo oc config view

View configured clusters

  • oc project

View current project

  • oc status

Show status

  • oc get projects

Show all projects

  • oc delete project <project_name>

Deleting a project

  • oc get pods

Shows the status of the pods

  • oc describe pod iainapp01-1-build

Shows status of an individual pod

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