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authorJan Chaloupka <jchaloup@redhat.com>2016-04-11 17:12:56 +0200
committerJan Chaloupka <jchaloup@redhat.com>2016-04-12 12:08:53 +0200
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Reference Setup for Origin and Ose from up-to-date docs.openshift.[com|org] instead of local README_[origin|OSE].md
Update inventory file for ansible playbook for OSE deployment. - enterprise value for deployment_type is depricated. Use openshift-enterprise instead. - key=value pairs must be on the same line
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-# Installing OpenShift Origin against existing hosts
-
-* [Requirements](#requirements)
-* [Caveats](#caveats)
-* [Known Issues](#known-issues)
-* [Configuring the host inventory](#configuring-the-host-inventory)
-* [Creating the default variables for the hosts and host groups](#creating-the-default-variables-for-the-hosts-and-host-groups)
-* [Running the ansible playbooks](#running-the-ansible-playbooks)
-* [Post-ansible steps](#post-ansible-steps)
-* [Overriding detected ip addresses and hostnames](#overriding-detected-ip-addresses-and-hostnames)
-
-## Requirements
-* ansible 1.9.4
- * Available in Fedora channels
- * Available for EL with EPEL and Optional channel
-* One or more RHEL 7.1+, CentOS 7.1+, or Fedora 23+ VMs
-* Either ssh key based auth for the root user or ssh key based auth for a user
- with sudo access (no password)
-* A checkout of openshift-ansible from https://github.com/openshift/openshift-ansible/
-
- ```sh
- git clone https://github.com/openshift/openshift-ansible.git
- cd openshift-ansible
- ```
-## Known Issues
-* RHEL - Host subscriptions are not configurable yet, the hosts need to be
- pre-registered with subscription-manager or have the RHEL base repo
- pre-configured. If using subscription-manager the following commands will
- disable all but the rhel-7-server rhel-7-server-extras and
- rhel-server7-ose-beta repos:
-```sh
-subscription-manager repos --disable="*"
-subscription-manager repos \
---enable="rhel-7-server-rpms" \
---enable="rhel-7-server-extras-rpms" \
---enable="rhel-7-server-ose-3.0-rpms"
-```
-* Configuration of router is not automated yet
-* Configuration of docker-registry is not automated yet
-* Fedora 23+ doesn't come with python2 and will need a quick bootstrap. Setup
- your inventory as described below and run the following (substituting the
- `$PATH_TO_INVENTORY_FILE` with the actual path to your inventory file):
-```sh
-ansible-playbook ./playbooks/adhoc/bootstrap-fedora.yml -i $PATH_TO_INVENTORY_FILE
-```
-
-## Configuring the host inventory
-[Ansible docs](http://docs.ansible.com/intro_inventory.html)
-
-Example inventory file for configuring one master and two nodes for the test
-environment. This can be configured in the default inventory file
-(/etc/ansible/hosts), or using a custom file and passing the --inventory
-option to ansible-playbook.
-
-/etc/ansible/hosts:
-```ini
-# This is an example of a bring your own (byo) host inventory
-
-# Create an OSEv3 group that contains the masters and nodes groups
-[OSEv3:children]
-masters
-nodes
-etcd
-lb
-
-# Set variables common for all OSEv3 hosts
-[OSEv3:vars]
-
-# SSH user, this user should allow ssh based auth without requiring a password
-ansible_ssh_user=root
-
-# If ansible_ssh_user is not root, ansible_sudo must be set to true
-#ansible_sudo=true
-
-deployment_type=origin
-
-# host group for masters
-[masters]
-osv3-master.example.com
-
-# host group for nodes
-[nodes]
-osv3-master.example.com
-osv3-node[1:2].example.com
-
-# host group for etcd
-[etcd]
-osv3-etcd[1:3].example.com
-
-[lb]
-osv3-lb.example.com
-
-```
-
-The hostnames above should resolve both from the hosts themselves and
-the host where ansible is running (if different).
-
-A more complete example inventory file ([hosts.origin.example](https://github.com/openshift/openshift-ansible/blob/master/inventory/byo/hosts.origin.example)) is available under the [`/inventory/byo`](https://github.com/openshift/openshift-ansible/tree/master/inventory/byo) directory.
-
-## Running the ansible playbooks
-From the openshift-ansible checkout run:
-```sh
-ansible-playbook playbooks/byo/config.yml
-```
-**Note:** this assumes that the host inventory is /etc/ansible/hosts, if using a different
-inventory file use the -i option for ansible-playbook.
-
-## Post-ansible steps
-
-You should now be ready to follow the [What's Next?](https://docs.openshift.org/latest/install_config/install/advanced_install.html#what-s-next) section of the advanced installation guide to deploy your router, registry, and other components.
-
-## Overriding detected ip addresses and hostnames
-Some deployments will require that the user override the detected hostnames
-and ip addresses for the hosts. To see what the default values will be you can
-run the openshift_facts playbook:
-```sh
-ansible-playbook playbooks/byo/openshift_facts.yml
-```
-The output will be similar to:
-```
-ok: [10.3.9.45] => {
- "result": {
- "ansible_facts": {
- "openshift": {
- "common": {
- "hostname": "jdetiber-osev3-ansible-005dcfa6-27c6-463d-9b95-ef059579befd.os1.phx2.redhat.com",
- "ip": "172.16.4.79",
- "public_hostname": "jdetiber-osev3-ansible-005dcfa6-27c6-463d-9b95-ef059579befd.os1.phx2.redhat.com",
- "public_ip": "10.3.9.45",
- "use_openshift_sdn": true
- },
- "provider": {
- ... <snip> ...
- }
- }
- },
- "changed": false,
- "invocation": {
- "module_args": "",
- "module_name": "openshift_facts"
- }
- }
-}
-ok: [10.3.9.42] => {
- "result": {
- "ansible_facts": {
- "openshift": {
- "common": {
- "hostname": "jdetiber-osev3-ansible-c6ae8cdc-ba0b-4a81-bb37-14549893f9d3.os1.phx2.redhat.com",
- "ip": "172.16.4.75",
- "public_hostname": "jdetiber-osev3-ansible-c6ae8cdc-ba0b-4a81-bb37-14549893f9d3.os1.phx2.redhat.com",
- "public_ip": "10.3.9.42",
- "use_openshift_sdn": true
- },
- "provider": {
- ...<snip>...
- }
- }
- },
- "changed": false,
- "invocation": {
- "module_args": "",
- "module_name": "openshift_facts"
- }
- }
-}
-ok: [10.3.9.36] => {
- "result": {
- "ansible_facts": {
- "openshift": {
- "common": {
- "hostname": "jdetiber-osev3-ansible-bc39a3d3-cdd7-42fe-9c12-9fac9b0ec320.os1.phx2.redhat.com",
- "ip": "172.16.4.73",
- "public_hostname": "jdetiber-osev3-ansible-bc39a3d3-cdd7-42fe-9c12-9fac9b0ec320.os1.phx2.redhat.com",
- "public_ip": "10.3.9.36",
- "use_openshift_sdn": true
- },
- "provider": {
- ...<snip>...
- }
- }
- },
- "changed": false,
- "invocation": {
- "module_args": "",
- "module_name": "openshift_facts"
- }
- }
-}
-```
-Now, we want to verify the detected common settings to verify that they are
-what we expect them to be (if not, we can override them).
-
-* hostname
- * Should resolve to the internal ip from the instances themselves.
- * openshift_hostname will override.
-* ip
- * Should be the internal ip of the instance.
- * openshift_ip will override.
-* public hostname
- * Should resolve to the external ip from hosts outside of the cloud
- * provider openshift_public_hostname will override.
-* public_ip
- * Should be the externally accessible ip associated with the instance
- * openshift_public_ip will override
-* use_openshift_sdn
- * Should be true unless the cloud is GCE.
- * openshift_use_openshift_sdn overrides
-
-To override the the defaults, you can set the variables in your inventory:
-```
-...snip...
-[masters]
-osv3-master.example.com openshift_ip=1.1.1.1 openshift_hostname=osv3-master.example.com openshift_public_ip=2.2.2.2 openshift_public_hostname=osv3-master.public.example.com
-...snip...
-```