Dougal Matthews b5d5cbab32 Verify the Swift container exists with a small utility workflow
The previous method of `swift.head_container` worked well, but it caused
Mistral to log the exception raised by swiftclient. This then left a red
flag in the logs that confused users debugging.

This new method checks for the container by listing all the containers
in the account and checking for the name. We only consider containers
that start with the full name we are looking for - Swift doesn't have an
exact match, only a prefix filter.

The workflow then can be used to create the container, capturing the
logic that was duplicated in each individual workflow.

Closes-Bug: #1730712
Depends-On: I41649d15c57e16bffcf7870a52bc01177aae7cc8
Change-Id: I4a6b5b9b31a4f76840a6c6070a1d733ceade5c64
2018-06-28 12:33:59 +01:00

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1.6 KiB
YAML

---
version: '2.0'
name: tripleo.swift.v1
description: TripleO Swift Utility Workflows
workflows:
container_exists:
description: >-
Verify if a Swift container exists
Given the name of a Swift container this workflow will verify if it
already exists. The workflow will ERROR if it doesn't and end in
SUCCESS if it does.
If create_container: true is passed in, then the container will be
created if it doesn't exist. In this case, if the workflow fails the
container failed to create.
input:
- container
- headers: {}
- create_container: false
tags:
- tripleo-common-managed
tasks:
# We use the "prefix" input to only list the containers starting with
# the container name we want to find. There is no way to do an exact
# match, but this will greatly reduce the possible number of results.
get_containers:
action: swiftservice.list
input:
options:
prefix: <% $.container %>
publish:
container_exists: <% bool(task().result) and $.container in task().result[0].listing.name %>
create_input: <% $.headers and {"container" => $.container, "headers" => $.headers} or {"container" => $.container} %>
on-success:
- succeed: <% $.container_exists %>
- fail: <% not $.create_container and not $.container_exists %>
- create_container: <% $.create_container and not $.container_exists %>
create_container:
action: swift.put_container
input: <% $.create_input %>