Comment 9 for bug 1730664

Reviewed: https://review.openstack.org/521045
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=ed669e22c830d7044c99891faf8ce9ae199f63b7
Submitter: Zuul
Branch: stable/pike

commit ed669e22c830d7044c99891faf8ce9ae199f63b7
Author: chenxing <email address hidden>
Date: Mon Nov 20 03:04:11 2017 +0000

    Fix the Ubuntu Fluentd image

    For ubuntu, we actually use fluentd 0.14.22 and ruby 2.1.10 now.
    Thus, we should use the specific gem version for the plugins:

     - fluent-plugin-rewrite-tag-filter:2.0.0
    According to the README.md of this plugin[1]
    It shows:
    ----------------------------------------------------------
    | fluent-plugin-rewrite-tag-filter | Fluentd | Ruby |
    |----------------------------------|------------|--------|
    | >= 2.0.0 | >= v0.14.2 | >= 2.1 |
    | < 2.0.0 | >= v0.12.0 | >= 1.9 |
    ----------------------------------------------------------

     - fluent-plugin-grok-parser:2.1.4
    When using the fluent-plugin-rewrite-tag-filter 2.0.0 to fix this bug, another
    bug[1] which is the same as this one[2] was triggered.
    According to https://github.com/fluent/fluent-plugin-grok-parser, it shows:
    ---------------------------------------------------
    | fluent-plugin-grok-parser | fluentd | Ruby |
    |---------------------------|------------|--------|
    | >= 1.0.0 | >= v0.14.0 | >= 2.1 |
    | < 1.0.0 | >= v0.12.0 | >= 1.9 |
    ---------------------------------------------------

    We actually use fluentd 0.14.22 now, but the version of fluent-plugin-grok-parser
    is still pinned in 0.3.1. So we need to upgrade the fluent-plugin-grok-parser to
    2.1.4.

    [1] https://github.com/fluent/fluent-plugin-rewrite-tag-filter
    [2] http://paste.openstack.org/show/626145/
    [3] https://github.com/fluent/fluent-plugin-grok-parser/issues/32

    Change-Id: I47985113fe732569d640a262ca832c6edc8c2bb6
    Partial-Bug: #1730664