diff options
Diffstat (limited to 'playbooks/adhoc')
| -rw-r--r-- | playbooks/adhoc/grow_docker_vg/filter_plugins/oo_filters.py | 41 | ||||
| -rw-r--r-- | playbooks/adhoc/grow_docker_vg/grow_docker_vg.yml | 204 |
2 files changed, 245 insertions, 0 deletions
diff --git a/playbooks/adhoc/grow_docker_vg/filter_plugins/oo_filters.py b/playbooks/adhoc/grow_docker_vg/filter_plugins/oo_filters.py new file mode 100644 index 000000000..d0264cde9 --- /dev/null +++ b/playbooks/adhoc/grow_docker_vg/filter_plugins/oo_filters.py @@ -0,0 +1,41 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- +# vim: expandtab:tabstop=4:shiftwidth=4 +''' +Custom filters for use in openshift-ansible +''' + +import pdb + + +class FilterModule(object): + ''' Custom ansible filters ''' + + @staticmethod + def oo_pdb(arg): + ''' This pops you into a pdb instance where arg is the data passed in + from the filter. + Ex: "{{ hostvars | oo_pdb }}" + ''' + pdb.set_trace() + return arg + + @staticmethod + def translate_volume_name(volumes, target_volume): + ''' + This filter matches a device string /dev/sdX to /dev/xvdX + It will then return the AWS volume ID + ''' + for vol in volumes: + translated_name = vol["attachment_set"]["device"].replace("/dev/sd", "/dev/xvd") + if target_volume.startswith(translated_name): + return vol["id"] + + return None + + + def filters(self): + ''' returns a mapping of filters to methods ''' + return { + "translate_volume_name": self.translate_volume_name, + } diff --git a/playbooks/adhoc/grow_docker_vg/grow_docker_vg.yml b/playbooks/adhoc/grow_docker_vg/grow_docker_vg.yml new file mode 100644 index 000000000..a88553ac0 --- /dev/null +++ b/playbooks/adhoc/grow_docker_vg/grow_docker_vg.yml @@ -0,0 +1,204 @@ +--- +# This playbook grows the docker VG on a node by: +# * add a new volume +# * add volume to the existing VG. +# * pv move to the new volume. +# * remove old volume +# * detach volume +# * mark old volume in AWS with "REMOVE ME" tag +# * grow docker LVM to 90% of the VG +# +# To run: +# 1. Source your AWS credentials (make sure it's the corresponding AWS account) into your environment +# export AWS_ACCESS_KEY_ID='XXXXX' +# export AWS_SECRET_ACCESS_KEY='XXXXXX' +# +# 2. run the playbook: +# ansible-playbook -e 'cli_tag_name=<tag-name>' grow_docker_vg.yml +# +# Example: +# ansible-playbook -e 'cli_tag_name=ops-compute-12345' grow_docker_vg.yml +# +# Notes: +# * By default this will do a 55GB GP2 volume. The can be overidden with the "-e 'cli_volume_size=100'" variable +# * This does a GP2 by default. Support for Provisioned IOPS has not been added +# * This will assign the new volume to /dev/xvdc. This is not variablized, yet. +# * This can be done with NO downtime on the host +# + +- name: Grow the docker volume group + hosts: "tag_Name_{{ cli_tag_name }}" + user: root + connection: ssh + gather_facts: no + + vars: + cli_volume_type: gp2 + cli_volume_size: 55 +# cli_volume_iops: "{{ 30 * cli_volume_size }}" + + pre_tasks: + - fail: + msg: "This playbook requires {{item}} to be set." + when: "{{ item }} is not defined or {{ item }} == ''" + with_items: + - cli_tag_name + - cli_volume_size + + - debug: + var: hosts + + - name: start docker + service: + name: docker + state: started + + - name: Determine if Storage Driver (docker info) is devicemapper + shell: docker info | grep 'Storage Driver:.*devicemapper' + register: device_mapper_check + ignore_errors: yes + + - debug: + var: device_mapper_check + + - name: fail if we don't detect devicemapper + fail: + msg: The "Storage Driver" in "docker info" is not set to "devicemapper"! Please investigate manually. + when: device_mapper_check.rc == 1 + + # docker-storage-setup creates a docker-pool as the lvm. I am using docker-pool lvm to test + # and find the volume group. + - name: Attempt to find the Volume Group that docker is using + shell: lvs | grep docker-pool | awk '{print $2}' + register: docker_vg_name + ignore_errors: yes + + - debug: + var: docker_vg_name + + - name: fail if we don't find a docker volume group + fail: + msg: Unable to find docker volume group. Please investigate manually. + when: docker_vg_name.stdout_lines|length != 1 + + # docker-storage-setup creates a docker-pool as the lvm. I am using docker-pool lvm to test + # and find the physical volume. + - name: Attempt to find the Phyisical Volume that docker is using + shell: "pvs | grep {{ docker_vg_name.stdout }} | awk '{print $1}'" + register: docker_pv_name + ignore_errors: yes + + - debug: + var: docker_pv_name + + - name: fail if we don't find a docker physical volume + fail: + msg: Unable to find docker physical volume. Please investigate manually. + when: docker_pv_name.stdout_lines|length != 1 + + + - name: get list of volumes from AWS + delegate_to: localhost + ec2_vol: + state: list + instance: "{{ ec2_id }}" + region: "{{ ec2_region }}" + register: attached_volumes + + - debug: var=attached_volumes + + - name: get volume id of current docker volume + set_fact: + old_docker_volume_id: "{{ attached_volumes.volumes | translate_volume_name(docker_pv_name.stdout) }}" + + - debug: var=old_docker_volume_id + + - name: check to see if /dev/xvdc exists + command: test -e /dev/xvdc + register: xvdc_check + ignore_errors: yes + + - debug: var=xvdc_check + + - name: fail if /dev/xvdc already exists + fail: + msg: /dev/xvdc already exists. Please investigate + when: xvdc_check.rc == 0 + + - name: Create a volume and attach it + delegate_to: localhost + ec2_vol: + state: present + instance: "{{ ec2_id }}" + region: "{{ ec2_region }}" + volume_size: "{{ cli_volume_size | default(30, True)}}" + volume_type: "{{ cli_volume_type }}" + device_name: /dev/xvdc + register: create_volume + + - debug: var=create_volume + + - name: Fail when problems creating volumes and attaching + fail: + msg: "Failed to create or attach volume msg: {{ create_volume.msg }}" + when: create_volume.msg is defined + + - name: tag the vol with a name + delegate_to: localhost + ec2_tag: region={{ ec2_region }} resource={{ create_volume.volume_id }} + args: + tags: + Name: "{{ ec2_tag_Name }}" + env: "{{ ec2_tag_environment }}" + register: voltags + + - name: check for attached drive + command: test -b /dev/xvdc + register: attachment_check + until: attachment_check.rc == 0 + retries: 30 + delay: 2 + + - name: partition the new drive and make it lvm + command: parted /dev/xvdc --script -- mklabel msdos mkpart primary 0% 100% set 1 lvm + + - name: pvcreate /dev/xvdc + command: pvcreate /dev/xvdc1 + + - name: Extend the docker volume group + command: vgextend "{{ docker_vg_name.stdout }}" /dev/xvdc1 + + - name: pvmove onto new volume + command: "pvmove {{ docker_pv_name.stdout }} /dev/xvdc1" + async: 3600 + poll: 10 + + - name: Remove the old docker drive from the volume group + command: "vgreduce {{ docker_vg_name.stdout }} {{ docker_pv_name.stdout }}" + + - name: Remove the pv from the old drive + command: "pvremove {{ docker_pv_name.stdout }}" + + - name: Extend the docker lvm + command: "lvextend -l '90%VG' /dev/{{ docker_vg_name.stdout }}/docker-pool" + + - name: detach old docker volume + delegate_to: localhost + ec2_vol: + region: "{{ ec2_region }}" + id: "{{ old_docker_volume_id }}" + instance: None + + - name: tag the old vol valid label + delegate_to: localhost + ec2_tag: region={{ ec2_region }} resource={{old_docker_volume_id}} + args: + tags: + Name: "{{ ec2_tag_Name }} REMOVE ME" + register: voltags + + - name: Update the /etc/sysconfig/docker-storage-setup with new device + lineinfile: + dest: /etc/sysconfig/docker-storage-setup + regexp: ^DEVS= + line: DEVS=/dev/xvdc |