MCollective modules for Linux Servers and Containers Management

procfs

Linux /proc filesystem agent

Usage: mco procfs [OPTIONS] [FILTERS] <ACTION> [CONCURRENCY]

The ACTION can be one of the following:

    load    - returns host load
    get     - generic getter
    set     - generic setter

        --csv                        Output result in CSV format
        --key KEY                    Proc file
        --value VALUE                New Value
...

Sample output:

$ mco procfs load
Host          Load1  Load5 Load15  Running  Procs
TADPOLE        0.00   0.01   0.05        1    281
SHRUBLAND      3.18   2.92   2.66        4   3166
...

$ mco procfs get --key uptime
Host         Key          Value               
CAVERN       uptime       2717507.72 10724660.39
GROTTO       uptime       2717506.91 21592814.11
...

cgroup

Linux Control Groups agent

Usage: mco cgroup [OPTIONS] [FILTERS] <ACTION> [CONCURRENCY]

The ACTION can be one of the following:

  list    - returns list of active control groups
  get     - generic getter
  set     - generic setter
  blkio   - returns cgroup info about Block I/O
  cpu     - returns cgroup info about CPU Scheduling
  memory  - returns cgroup info about Memory Use

      --csv                        Output result in CSV format
      --cgroup GROUP               Single Group to target
      --key KEY                    CGroup Key
      --value VALUE                CGroup Value
...

Sample output:

$ mco cgroup memory -T LXCHosts
Host                        Group     Used      Max    Limit  FailCnt
CANTON                Dev.Jabber1      679      751     2048        0
HAMLET                Dev.Jabber2      680      773     2048        0
GROVE                  IT.rabbit3      662      721     2048        0
...

lxc

LXC agent, does stuff

Usage: mco lxc [OPTIONS] [FILTERS] <ACTION> [CONCURRENCY]

The ACTION can be one of the following:

  list         - returns list of LXC containers
  start        - start container(s) ALL BY DEFAULT
  stop         - stop container(s) - not implemented
  autostart    - set container(s) to be started on boot
  manualstart  - set container(s) to be started manually
  autoclean    - removed broken autostart links

      --csv                        Output result in CSV format
      --container CONTAINER        Single Container to target
...

Sample output:

$ mco lxc list -T LXCHosts
Host         Container            Status   Startup
STEPPE       QAMain.admin         RUNNING  Auto
STEPPE       QAMain.apps          RUNNING  Auto
STEPPE       QAMain.monitor       STOPPED  Manual
...

lvm

LVM agent, get stats

Usage: mco lvm [OPTIONS] [FILTERS] <ACTION> [CONCURRENCY]

The ACTION can be one of the following:

  vgdisplay   - returns the status of all volume groups 
  lvdisplay   - returns the status of all logical volume

      --csv                        Output result in CSV format
...

Sample output:

$ mco lvm lvdisplay
Host                       Volume     Size
LAKE                           IT    16.00
LAKE                     Memcache    16.00
LAKE                         root    29.80
...

drbd

Linux Replicated Block Device Agent

Usage: mco drbd [OPTIONS] [FILTERS] <ACTION> [CONCURRENCY]

The ACTION can be one of the following:

    list    - returns list of replicated block devices

        --csv                        Output result in CSV format
...

Sample output:

$ mco drbd list -I hamlet
Host                 Dev   Connection   Role         Peer Role    Disk         Peer Disk   
HAMLET               1     Connected    Primary      Secondary    UpToDate     UpToDate    
HAMLET               2     Connected    Secondary    Primary      UpToDate     UpToDate    
...