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Version: 3.1

Uninstall Portworx using a Nomad job

There are two steps to completely uninstall Portworx from Nomad:

  • Remove the Nomad Portworx job
  • Run the px-node-wiper Nomad batch job to uninstall Portworx binaries from Nomad client nodes

Remove Nomad portworx job

To remove the Portworx job, run the following command:

nomad job stop -purge portworx

Delete/wipe a Portworx cluster

note

The commands used in this section are DISRUPTIVE and will lead to the loss of all your data volumes. Proceed with CAUTION.

Save the Nomad batch job in a file called px-node-wiper.nomad:

job "px-node-wiper" {
type = "batch"
datacenters = ["dc1"]

group "px-node-wiper" {
count = 3

constraint {
operator = "distinct_hosts"
value = "true"
}

task "px-node-wiper" {
driver = "docker"
kill_timeout = "120s" # allow portworx 2 min to gracefully shut down
kill_signal = "SIGTERM" # use SIGTERM to shut down the nodes

# container config
config {
image = "portworx/px-node-wiper:2.10.0"
network_mode = "host"
ipc_mode = "host"
privileged = true
args = [
"--removedata"
]

volumes = [
"/etc/pwx:/etc/pwx",
"/opt/pwx:/opt/pwx",
"/proc:/hostproc",
"/etc/systemd/system:/etc/systemd/system",
"/var/run/dbus:/var/run/dbus"
]
}

# resource config
resources {
cpu = 1024
memory = 2048
}
}
}
}

You will have to make changes to this file to match your portworx.nomad file, i.e., update datacenter, count and constraints.

Then, run the following command:

nomad run px-node-wiper.nomad

Wait for all instances to complete:

nomad status px-node-wiper
ID            = px-node-wiper
Name = px-node-wiper
Submit Date = 2019-05-08T01:17:53Z
Type = batch
Priority = 50
Datacenters = dc1
Status = dead
Periodic = false
Parameterized = false

Summary
Task Group Queued Starting Running Failed Complete Lost
px-node-wiper 0 0 0 0 3 0

Allocations
ID Node ID Task Group Version Desired Status Created Modified
145b8fda e074a6b0 px-node-wiper 0 run complete 57s ago 34s ago
4b9f527f 6138409d px-node-wiper 0 run complete 57s ago 33s ago
d4ca97ae 2299a3b6 px-node-wiper 0 run complete 57s ago 33s ago

Delete the wiper job once completed:

nomad job stop px-node-wiper
nomad system gc
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