diff options
Diffstat (limited to 'README_origin.md')
| -rw-r--r-- | README_origin.md | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/README_origin.md b/README_origin.md deleted file mode 100644 index b0169946b..000000000 --- a/README_origin.md +++ /dev/null @@ -1,216 +0,0 @@ -# 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... -``` |