Grab images as part of update e2e test

Just default rc=0 then you don't need the && case. Also, you need double quotes everywhere.

```shell
  local rc=0
  curl -s --max-time 5 --fail "http://${host_ip}:8080/data.json" | grep -q "${container_image_version}" || rc=$?
```

But in this case you don't need it since you're only using $rc to know if the command failed or not.

```shell
  curl -s --max-time 5 --fail "http://${host_ip}:8080/data.json" | grep -q "${container_image_version}" || {
    echo "  ${id} is running the right image but curl to contents failed or returned wrong info"
    continue
  }
```