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authorMatt Woodson <mwoodson@gmail.com>2016-02-29 14:44:03 -0500
committerMatt Woodson <mwoodson@gmail.com>2016-02-29 14:44:03 -0500
commitfadad1f7e1934ab5542eae320af6fdaca7024479 (patch)
tree649640656ac26c2acc5df75b37c44b6a08c4fd87
parentc1f8ef6cb5694d1f014b3428311c0aabe6e718b5 (diff)
parentfb6729d41ff81c19dd79709ad77aaac11df6c711 (diff)
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Merge pull request #1521 from mwoodson/docker_lvm
role: added docker_storage_setup
-rw-r--r--roles/docker_storage/README.md39
-rw-r--r--roles/docker_storage/defaults/main.yml1
-rw-r--r--roles/docker_storage/handlers/main.yml1
-rw-r--r--roles/docker_storage/meta/main.yml9
-rw-r--r--roles/docker_storage/tasks/main.yml37
-rw-r--r--roles/docker_storage/vars/main.yml1
-rw-r--r--roles/docker_storage_setup/README.md42
-rw-r--r--roles/docker_storage_setup/defaults/main.yml2
-rwxr-xr-xroles/docker_storage_setup/tasks/main.yml95
9 files changed, 139 insertions, 88 deletions
diff --git a/roles/docker_storage/README.md b/roles/docker_storage/README.md
deleted file mode 100644
index bf0158623..000000000
--- a/roles/docker_storage/README.md
+++ /dev/null
@@ -1,39 +0,0 @@
-docker_storage
-=========
-
-Configure docker_storage options
-------------
-
-None
-
-Role Variables
---------------
-
-None
-
-Dependencies
-------------
-
-None
-
-Example Playbook
-----------------
-
-Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
-
- - hosts: servers
- roles:
- - { role/docker_storage:
- - key: df.fs
- value: xfs
- }
-
-License
--------
-
-ASL 2.0
-
-Author Information
-------------------
-
-OpenShift operations, Red Hat, Inc
diff --git a/roles/docker_storage/defaults/main.yml b/roles/docker_storage/defaults/main.yml
deleted file mode 100644
index ed97d539c..000000000
--- a/roles/docker_storage/defaults/main.yml
+++ /dev/null
@@ -1 +0,0 @@
----
diff --git a/roles/docker_storage/handlers/main.yml b/roles/docker_storage/handlers/main.yml
deleted file mode 100644
index ed97d539c..000000000
--- a/roles/docker_storage/handlers/main.yml
+++ /dev/null
@@ -1 +0,0 @@
----
diff --git a/roles/docker_storage/meta/main.yml b/roles/docker_storage/meta/main.yml
deleted file mode 100644
index f5b2d53cb..000000000
--- a/roles/docker_storage/meta/main.yml
+++ /dev/null
@@ -1,9 +0,0 @@
----
-galaxy_info:
- author: OpenShift
- description: Setup docker_storage options
- company: Red Hat, Inc
- license: ASL 2.0
- min_ansible_version: 1.2
-dependencies:
-- docker
diff --git a/roles/docker_storage/tasks/main.yml b/roles/docker_storage/tasks/main.yml
deleted file mode 100644
index 48a3fc208..000000000
--- a/roles/docker_storage/tasks/main.yml
+++ /dev/null
@@ -1,37 +0,0 @@
----
-- lvg:
- pvs: "{{ dst_device }}"
- vg: "{{ dst_vg }}"
- register: dst_lvg
-
-- lvol:
- lv: data
- vg: "{{ dst_vg }}"
- size: 95%VG
- register: dst_lvol_data
-
-- lvol:
- lv: metadata
- vg: "{{ dst_vg }}"
- size: 5%VG
- register: dst_lvol_metadata
-
-
-- name: Update docker_storage options
- lineinfile:
- dest: /etc/sysconfig/docker-storage
- backrefs: yes
- regexp: "^(DOCKER_STORAGE_OPTIONS=)"
- line: '\1 --storage-opt {{ dst_options | oo_combine_key_value("=") | join(" --storage-opt ") }}'
- when: dst_options is defined and dst_options | length > 0
- register: dst_config
-
-
-- name: Reload systemd units
- command: systemctl daemon-reload
- notify:
- - restart docker
- when: dst_config | changed or
- dst_lvg | changed or
- dst_lvol_data | changed or
- dst_lvol_metadata | changed
diff --git a/roles/docker_storage/vars/main.yml b/roles/docker_storage/vars/main.yml
deleted file mode 100644
index ed97d539c..000000000
--- a/roles/docker_storage/vars/main.yml
+++ /dev/null
@@ -1 +0,0 @@
----
diff --git a/roles/docker_storage_setup/README.md b/roles/docker_storage_setup/README.md
new file mode 100644
index 000000000..6039b349a
--- /dev/null
+++ b/roles/docker_storage_setup/README.md
@@ -0,0 +1,42 @@
+docker_storage_setup
+=========
+This role coverts docker to go from loopback to direct-lvm (the Red Hat recommended way to run docker).
+
+It requires the block device to be already provisioned and attached to the host.
+
+ Notes:
+ * This is NOT idempotent. Conversion needs to be done for it to be idempotent
+ * This will remove /var/lib/docker!
+ * You will need to re-deploy docker images
+
+Configure docker_storage_setup
+------------
+
+None
+
+Role Variables
+--------------
+
+dss_docker_device: defaults to /dev/xvdb
+
+Dependencies
+------------
+
+None
+
+Example Playbook
+----------------
+
+ - hosts: servers
+ roles:
+ - { role/docker_storage_setup, dss_docker_device: '/dev/xvdb' }
+
+License
+-------
+
+ASL 2.0
+
+Author Information
+------------------
+
+OpenShift operations, Red Hat, Inc
diff --git a/roles/docker_storage_setup/defaults/main.yml b/roles/docker_storage_setup/defaults/main.yml
new file mode 100644
index 000000000..5013aba97
--- /dev/null
+++ b/roles/docker_storage_setup/defaults/main.yml
@@ -0,0 +1,2 @@
+---
+dss_docker_device: /dev/xvdb
diff --git a/roles/docker_storage_setup/tasks/main.yml b/roles/docker_storage_setup/tasks/main.yml
new file mode 100755
index 000000000..8af9bbe1e
--- /dev/null
+++ b/roles/docker_storage_setup/tasks/main.yml
@@ -0,0 +1,95 @@
+---
+- name: Ensure docker is installed
+ action: "{{ ansible_pkg_mgr }} name={{ item }} state=present"
+ with_items:
+ - docker
+
+# Docker doesn't seem to start cleanly the first time run
+# when loopback (not directlvm) is configured. Putting in an
+# ignore errors, and then sleeping till it can come up cleanly
+- name: Try to start docker. This might fail (loopback startup issue)
+ service:
+ name: docker
+ state: started
+ ignore_errors: yes
+
+- name: Pause for 1 minute
+ pause:
+ seconds: 30
+
+- name: Ensure docker is started
+ service:
+ name: docker
+ state: started
+
+- name: Determine if loopback
+ shell: docker info | grep 'Data file:.*loop'
+ register: loop_device_check
+ ignore_errors: yes
+
+- debug:
+ var: loop_device_check
+
+- name: fail if we don't detect loopback
+ fail:
+ msg: loopback not detected! Please investigate manually.
+ when: loop_device_check.rc == 1
+
+- name: "check to see if {{ dss_docker_device }} exists"
+ command: "test -e {{ dss_docker_device }}"
+ register: docker_dev_check
+ ignore_errors: yes
+
+- debug: var=docker_dev_check
+
+- name: "fail if {{ dss_docker_device }} doesn't exist"
+ fail:
+ msg: "{{ dss_docker_device }} doesn't exist. Please investigate"
+ when: docker_dev_check.rc != 0
+
+- name: stop docker
+ service:
+ name: docker
+ state: stopped
+
+- name: delete /var/lib/docker
+ command: rm -rf /var/lib/docker
+
+- name: remove /var/lib/docker
+ command: rm -rf /var/lib/docker
+
+- name: copy the docker-storage-setup config file
+ copy:
+ content: >
+ DEVS={{ dss_docker_device }}\n
+ VG=docker_vg
+ dest: /etc/sysconfig/docker-storage-setup
+ owner: root
+ group: root
+ mode: 0664
+
+- name: docker storage setup
+ command: docker-storage-setup
+ register: docker_storage_setup_output
+
+- debug:
+ msg: "{{ docker_storage_setup_output }}"
+
+- name: extend the vg
+ command: lvextend -l 90%VG /dev/docker_vg/docker-pool
+ register: lvextend_output
+
+- debug:
+ msg: "{{ lvextend_output }}"
+
+- name: start docker
+ service:
+ name: docker
+ state: restarted
+
+- name: docker info
+ command: docker info
+ register: dockerinfo
+
+- debug:
+ msg: "{{ dockerinfo }}"