Cleanup via Ansible

+ Remove dependency on topo_ scripts that depends on custom SSH()
  that depends on framework itself. This way the cleanup is independent
  of failure in our SSH libs.
+ Simple ansible command can do cleanup of a machine:
  ansible-playbook --inventory inventories/lf_inventory/hosts site.yaml \
  --limit '10.32.8.18' --tags 'cleanup'
+ Add vpp_device reset and cleanup.
+ Remove historical scripts.

- Still in testing beta phase.
  - Need to add SRIOV cleanup.

Signed-off-by: Peter Mikus <pmikus@cisco.com>
Change-Id: I68e23304c7ad01041f51263c328c6e8d9b555cb7

1 files changed, 113 insertions, 0 deletions

diff --git a/resources/tools/testbed-setup/ansible/roles/cleanup/files/reset_vppdevice.sh b/resources/tools/testbed-setup/ansible/roles/cleanup/files/reset_vppdevice.sh
new file mode 100644
index 0000000000..ede2db1273
--- /dev/null
+++ b/resources/tools/testbed-setup/ansible/roles/cleanup/files/reset_vppdevice.sh
@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+function die () {
+    # Print the message to standard error end exit with error code specified
+    # by the second argument.
+    #
+    # Hardcoded values:
+    # - The default error message.
+    # Arguments:
+    # - ${1} - The whole error message, be sure to quote. Optional
+    # - ${2} - the code to exit with, default: 1.
+
+    set +eu
+    warn "${1:-Unspecified run-time error occurred!}"
+    exit "${2:-1}"
+}
+
+
+function set_eligibility_off {
+    # Set Nomad eligibility to ineligible for scheduling. Fail otherwise.
+
+    set -euo pipefail
+
+    node_id="$(nomad node status | grep $(hostname) | cut -d ' ' -f 1)" || die
+    node_status="$(nomad node status | grep $(hostname))" || die
+
+    if [[ "${node_status}" != *"ineligible"* ]]; then
+        nomad node eligibility -disable "${node_id}" || die
+        node_status="$(nomad node status | grep $(hostname))" || die
+        if [[ "${node_status}" != *"ineligible"* ]]; then
+            die "Set eligibility off failed!"
+        fi
+    fi
+}
+
+
+function set_eligibility_on {
+    # Set Nomad eligibility to eligible for scheduling. Fail otherwise.
+
+    set -euo pipefail
+
+    node_id="$(nomad node status | grep $(hostname) | cut -d ' ' -f 1)" || die
+    node_status="$(nomad node status | grep $(hostname))" || die
+
+    if [[ "${node_status}" == *"ineligible"* ]]; then
+        nomad node eligibility -enable "${node_id}" || die
+        node_status="$(nomad node status | grep $(hostname))" || die
+        if [[ "${node_status}" == *"ineligible"* ]]; then
+            die "Set eligibility on failed!"
+        fi
+    fi
+}
+
+
+function restart_vfs_service {
+    # Stop and start VF serice. This will reinitialize VFs and driver mappings.
+
+    set -euo pipefail
+
+    warn "Restarting VFs service (this may take few minutes)..."
+    sudo service csit-initialize-vfs stop || die "Failed to stop VFs service!"
+    sudo service csit-initialize-vfs start || die "Failed to start VFs service!"
+}
+
+
+function wait_for_pending_containers {
+    # Wait in loop for defined amount of time for pending containers to
+    # gracefully quit them. If parameter force is specified. Force kill them.
+
+    # Arguments:
+    # - ${@} - Script parameters.
+
+    set -euo pipefail
+
+    retries=60
+    wait_time=60
+    containers=(docker ps --quiet --filter name=csit*)
+
+    for i in $(seq 1 ${retries}); do
+        mapfile -t pending_containers < <( ${containers[@]} ) || die
+        warn "Waiting for pending containers [${pending_containers[@]}] ..."
+        if [ ${#pending_containers[@]} -eq 0 ]; then
+            break
+        fi
+        sleep "${wait_time}" || die
+    done
+    if [ ${#pending_containers[@]} -ne 0 ]; then
+        if [[ "${1-}" == "force" ]]; then
+            warn "Force killing [${pending_containers[@]}] ..."
+            docker rm --force ${pending_containers[@]} || die
+        else
+            die "Still few containers running!"
+        fi
+    fi
+}
+
+
+function warn () {
+    # Print the message to standard error.
+    #
+    # Arguments:
+    # - ${@} - The text of the message.
+
+    echo "$@" >&2
+}
+
+
+set_eligibility_off || die
+wait_for_pending_containers "${@}" || die
+restart_vfs_service || die
+set_eligibility_on || die