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Support multiple inventory files under individual inventory directory

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This commit is contained in:
Wong Hoi Sing Edison
2018-02-01 14:42:34 +08:00
parent 384e5dd4c4
commit 1a1d154e14
21 changed files with 162 additions and 134 deletions
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14
docs/ansible.md
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@@ -27,7 +27,7 @@ not _kube-node_.
There are also two special groups:
* **calico-rr** : explained for [advanced Calico networking cases](calico.md)
* **calico-rr** : explained for [advanced Calico networking cases](calico.md)
* **bastion** : configure a bastion host if your nodes are not directly reachable
Below is a complete inventory example:
@@ -66,10 +66,10 @@ kube-master
Group vars and overriding variables precedence
----------------------------------------------
The group variables to control main deployment options are located in the directory ``inventory/group_vars``.
Optional variables are located in the `inventory/group_vars/all.yml`.
The group variables to control main deployment options are located in the directory ``inventory/sample/group_vars``.
Optional variables are located in the `inventory/sample/group_vars/all.yml`.
Mandatory variables that are common for at least one role (or a node group) can be found in the
`inventory/group_vars/k8s-cluster.yml`.
`inventory/sample/group_vars/k8s-cluster.yml`.
There are also role vars for docker, rkt, kubernetes preinstall and master roles.
According to the [ansible docs](http://docs.ansible.com/ansible/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable),
those cannot be overriden from the group vars. In order to override, one should use
@@ -153,16 +153,16 @@ Example command to filter and apply only DNS configuration tasks and skip
everything else related to host OS configuration and downloading images of containers:
```
ansible-playbook -i inventory/inventory.ini cluster.yml --tags preinstall,dnsmasq,facts --skip-tags=download,bootstrap-os
ansible-playbook -i inventory/sample/hosts.ini cluster.yml --tags preinstall,dnsmasq,facts --skip-tags=download,bootstrap-os
```
And this play only removes the K8s cluster DNS resolver IP from hosts' /etc/resolv.conf files:
```
ansible-playbook -i inventory/inventory.ini -e dnsmasq_dns_server='' cluster.yml --tags resolvconf
ansible-playbook -i inventory/sample/hosts.ini -e dnsmasq_dns_server='' cluster.yml --tags resolvconf
```
And this prepares all container images localy (at the ansible runner node) without installing
or upgrading related stuff or trying to upload container to K8s cluster nodes:
```
ansible-playbook -i inventory/inventory.ini cluster.yml \
ansible-playbook -i inventory/sample/hosts.ini cluster.yml \
-e download_run_once=true -e download_localhost=true \
--tags download --skip-tags upload,upgrade
```