jclaret

---

# The following variables will be set by the runner of this playbook:
# src: /tmp/some/path/private_data_dir
# dest: /tmp/some/path/
# proot_temp_dir: /tmp/some/path

- name: Prepare data, dispatch job in isolated environment.
  hosts: all
  gather_facts: false

jclaret

ansible_ssh_port: 2222
ansible_host: localhost

jclaret

oc new-project image-uploader --display-name='Image Uploader Project'
oc new-app centos/ruby-22-centos7~https://github.com/openshift/ruby-ex.git
oc new-app --image-stream=php --code=https://github.com/OpenShiftInAction/image-uploader.git --name=app-cli
oc describe svc/app-cli
oc expose svc/app-cli
oc describe route/app-cli
oc scale dc/app-cli --replicas=2
oc scale dc/app-cli --replicas=1
oc get pods --show-all=false
oc exec app-cli-1-9hsz1 hostname

jclaret

RH Docs:
========
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/high_availability_add-on_reference/
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/high_availability_add-on_overview/
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/high_availability_add-on_administration/

VMWARE FENCING
==============
https://access.redhat.com/solutions/82333
https://access.redhat.com/solutions/917813

jclaret

pcs cluster start
pcs cluster stop clu01.local.net
pcs cluster stop --all
pcs cluster start --all
pcs cluster enable
pcs cluster disable clu01.local.net
pcs cluster disable --all

pcs cluster node remove clu03.local.net
pcs stonith delete clu03.local.net

jclaret

pcs stonith list
pcs stonith describe fence_rhevm
ls /usr/sbin/fence*
pcs stonith create name fencing_agent parameters
pcs stonith create rhev-fence fence_rhevm ipaddr=engine.local.net ipport=443 ssl_insecure=1 ssl=1 inet4_only=1 login=admin@internal passwd=PASSWD pcmk_host_map="clu01:clu01.local.net;clu02:clu02.local.net;clu03:clu03.local.net" pcmk_host_check=static-list pcmk_host_list="clu01.local.net,clu02.local.net,clu03.local.net" power_wait=3 op monitor interval=90s
pcs stonith update rhev-fence fence_rhevm api_path=/ovirt-engine/api disable_http_filter=1 ipaddr=engine.local.net ipport=443 ssl_insecure=1 ssl=1 inet4_only=1 login=admin@internal passwd=PASSWORD pcmk_host_map="clu01.local.net:clu01.local.net;clu02.local.net:clu02.local.net;clu03.local.net:clu03.local.net" pcmk_host_check=static-list pcmk_host_list="clu01.local.net,clu02.local.net,clu03.local.net" power_wait=3 op monitor interval=90s
fence_rhevm -o status -a engine.local.net --username=admin@internal --password=PASSWORD --ipport=443  -n clu

jclaret

pcs resource 
pcs resource --help
pcs resource list
pcs resource describe Filesystem
pcs resource create myfs Filesystem device=/dev/vg_cluster/lv_cluster_data01 directory=/data fstype=xfs options=ro --group mygroup
pcs resource show
pcs resource show myfs
pcs resource update myfs directory=/data
pcs resource delete myfs

jclaret

pcs status
pcs resource failcount show firstwebserver
pcs resource show --full 
pcs resource debug-start firstwebserver --full
pcs resource show firstwebserver
pcs resource update firstwebserver configfile=/etc/httpd/conf/httpd.conf
pcs resource failcount show firstwebserver
pcs resource failcount reset firstwebserver

firewall-cmd --list-all

jclaret

pcs constraint location firstweb prefers clu03.local.net=200
pcs resource defaults resource-stickiness=500
pcs constraint location firstweb prefers clu02.local.net=499
pcs constraint location firstweb avoids clu01.local.net=499

pcs cluster standby clu02.local.net
pcs cluster unstandby clu02.local.net

pcs constraint --full
pcs constraint 

jclaret

$ git clone https://github.com/shudarshon/ansible_role.git
$ cd ansible_role/roles/tomcat
$ virtualenv --python=/usr/bin/python .venv
$ source .venv/bin/activate
$ pip install ansible
$ pip install molecule
$ pip install docker