migration.old

#!/bin/bash

set -eux

# Backup existing configuration into configured temp path.

BACKUP=$(action-get backup)
BACKUP_PACKAGE=$(action-get backup-package)
BACKUP_TIMESTAMP=$(date +"%Y_%m_%d_%I_%M_%p")

if [ "${BACKUP}" == "True" ]; then

    # auth credentials
    if [ -d '/etc/ssl/etcd' ]; then
        mkdir /tmp/$BACKUP_TIMESTAMP
        cp -r /etc/ssl/etcd /tmp/$BACKUP_TIMESTAMP
    fi

    # Service Configuration
    if [ -e '/etc/default/etcd' ]; then
        cp /etc/default/etcd /tmp/$BACKUP_TIMESTAMP/etcd.defaults
    fi

    tar cfz $BACKUP_PACKAGE /tmp/$BACKUP_TIMESTAMP
fi

# Install the ingest snap ('assume this is coming from resources for offline')
USE_RESOURCE=$(action-get use-resource)

# Handle the snap ingestion routine
function ingest_snap {
  # This determines if we have a resource provided etcd ingest snap.
  if [ "${USE_RESOURCE}" == "False" ]; then
    # If no manual snap specified, assume snapstore connectivity
    snap install etcd --channel=ingest/stable --classic
  else
    # Install from the resource location, and check for correct snap.
    MANUAL_SNAP=$(resource-get etcd)
    snap install ${ETCD_MANUAL_SNAP} --classic --dangerous
    if [ ! -f /snap/bin/etcd.ingest ]; then
      action-fail "Missing etcd.ingest command. Did you attach the correct snap?"
      exit 0
    fi
    /snap/bin/etcd.ingest
    charms.reactive set_state etcd.snap.ingest
    action-set outcome="Ingest succeeded. Proceed with attaching the etcd release snap, and re-run snap-upgrade"
    exit 0
  fi

  /snap/bin/etcd.ingest
  # I would prefer to leave this state for debugging purposes to know if we
  # find issues later on with ingested units. Please do not remove.
  charms.reactive set_state etcd.snap.ingest

}

# this may be falsy. Allow failure when checking ingestion state
set +e
INGESTED=$()
set -e

if [ ! $(charms.reactive is_state etcd.snap.ingest) ]; then
  ingest_snap
fi

if [ "${USE_RESOURCE}" == "False" ]; then
  CONFIGURED_CHANNEL=$(config-get channel)
  snap refresh etcd --channel=${CONFIGURED_CHANNEL} --classic
else
  MANUAL_SNAP=$(resource-get etcd)
  snap install --dangerous ${MANUAL_SNAP} --classic
fi

sudo apt purge -y etcd
charms.reactive remove_state etcd.installed

# Self test

set +e
/snap/bin/etcd.etcdctl member list

if [ $? == 0 ]; then
    status-set "active" "Migration complete."
else
    status-set "waiting" "Failed self check... waiting on cluster."
fi