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Bugfixes for Local Volume Provisioner

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- Fixed an issue where storage class host directories were looped
through excessive target hosts
- Fixes examples in the LVP `README.md` to use nested dicts instead of a
list of dicts
This commit is contained in:
Chad Swenson 2019-01-08 17:32:39 -06:00
parent 4fb8adb9e4
commit 72802e4d8d
5 changed files with 40 additions and 41 deletions
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22
inventory/sample/group_vars/k8s-cluster/addons.yml
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@ -21,17 +21,17 @@ metrics_server_enabled: false
local_volume_provisioner_enabled: false local_volume_provisioner_enabled: false
# local_volume_provisioner_namespace: kube-system # local_volume_provisioner_namespace: kube-system
# local_volume_provisioner_storage_classes: # local_volume_provisioner_storage_classes:
# - local-storage: # local-storage:
# host_dir: /mnt/disks # host_dir: /mnt/disks
# mount_dir: /mnt/disks # mount_dir: /mnt/disks
# - fast-disks: # fast-disks:
# host_dir: /mnt/fast-disks # host_dir: /mnt/fast-disks
# mount_dir: /mnt/fast-disks # mount_dir: /mnt/fast-disks
# block_cleaner_command: # block_cleaner_command:
# - "/scripts/shred.sh" # - "/scripts/shred.sh"
# - "2" # - "2"
# volume_mode: Filesystem # volume_mode: Filesystem
# fs_type: ext4 # fs_type: ext4
# CephFS provisioner deployment # CephFS provisioner deployment
cephfs_provisioner_enabled: false cephfs_provisioner_enabled: false

48
roles/kubernetes-apps/external_provisioner/local_volume_provisioner/README.md
View file

@ -5,26 +5,26 @@ The [local storage provisioner](https://github.com/kubernetes-incubator/external
is NOT a dynamic storage provisioner as you would is NOT a dynamic storage provisioner as you would
expect from a cloud provider. Instead, it simply creates PersistentVolumes for expect from a cloud provider. Instead, it simply creates PersistentVolumes for
all mounts under the host_dir of the specified storage class. all mounts under the host_dir of the specified storage class.
These storage classes are specified in the `local_volume_provisioner_storage_classes` list. These storage classes are specified in the `local_volume_provisioner_storage_classes` nested dictionary.
An example this list: Example:
```yaml ```yaml
local_volume_provisioner_storage_classes: local_volume_provisioner_storage_classes:
- local-storage: local-storage:
host_dir: /mnt/disks host_dir: /mnt/disks
mount_dir: /mnt/disks mount_dir: /mnt/disks
- fast-disks: fast-disks:
host_dir: /mnt/fast-disks host_dir: /mnt/fast-disks
mount_dir: /mnt/fast-disks mount_dir: /mnt/fast-disks
block_cleaner_command: block_cleaner_command:
- "/scripts/shred.sh" - "/scripts/shred.sh"
- "2" - "2"
volume_mode: Filesystem volume_mode: Filesystem
fs_type: ext4 fs_type: ext4
``` ```
For each dictionary in `local_volume_provisioner_storage_classes` a storageClass with the For each key in `local_volume_provisioner_storage_classes` a storageClass with the
same name is created. The keys of this dictionary are converted to camelCase and added same name is created. The subkeys of each storage class are converted to camelCase and added
as attributes to the storageClass. as attributes to the storageClass.
The result of the above example is: The result of the above example is:
@ -32,16 +32,16 @@ The result of the above example is:
data: data:
storageClassMap: | storageClassMap: |
local-storage: local-storage:
hostDir: /mnt/disks hostDir: /mnt/disks
mountDir: /mnt/disks mountDir: /mnt/disks
fast-disks: fast-disks:
hostDir: /mnt/fast-disks hostDir: /mnt/fast-disks
mountDir: /mnt/fast-disks mountDir: /mnt/fast-disks
blockCleanerCommand: blockCleanerCommand:
- "/scripts/shred.sh" - "/scripts/shred.sh"
- "2" - "2"
volumeMode: Filesystem volumeMode: Filesystem
fsType: ext4 fsType: ext4
``` ```
The default StorageClass is local-storage on /mnt/disks, The default StorageClass is local-storage on /mnt/disks,

1
roles/kubernetes-apps/external_provisioner/local_volume_provisioner/tasks/main.yml
View file

@ -10,7 +10,6 @@
with_nested: with_nested:
- "{{ groups['k8s-cluster'] }}" - "{{ groups['k8s-cluster'] }}"
- "{{ local_volume_provisioner_storage_classes.keys() }}" - "{{ local_volume_provisioner_storage_classes.keys() }}"
failed_when: false
- name: Local Volume Provisioner | Create addon dir - name: Local Volume Provisioner | Create addon dir
file: file:

4
roles/kubernetes-apps/external_provisioner/meta/main.yml
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@ -1,7 +1,9 @@
--- ---
dependencies: dependencies:
- role: kubernetes-apps/external_provisioner/local_volume_provisioner - role: kubernetes-apps/external_provisioner/local_volume_provisioner
when: local_volume_provisioner_enabled when:
- local_volume_provisioner_enabled
- inventory_hostname == groups['kube-master'][0]
tags: tags:
- apps - apps
- local-volume-provisioner - local-volume-provisioner

6
roles/kubernetes/preinstall/tasks/0050-create_directories.yml
View file

@ -47,14 +47,12 @@
- name: Create local volume provisioner directories - name: Create local volume provisioner directories
file: file:
path: "{{ local_volume_provisioner_storage_classes[item.1].host_dir }}" path: "{{ local_volume_provisioner_storage_classes[item].host_dir }}"
state: directory state: directory
owner: root owner: root
group: root group: root
mode: 0700 mode: 0700
with_nested: with_items: "{{ local_volume_provisioner_storage_classes.keys() }}"
- "{{ groups['k8s-cluster'] }}"
- "{{ local_volume_provisioner_storage_classes.keys() }}"
when: when:
- inventory_hostname in groups['k8s-cluster'] - inventory_hostname in groups['k8s-cluster']
- local_volume_provisioner_enabled - local_volume_provisioner_enabled