Fail to build fluentd image for Pike

[Kevin Tibi]

The build for fluentd on pike version fail.

The gem "fluent-plugin-kubernetes_metadata_filter" has been released since 4 days in 2.0.0 which need ruby =>2.1.

The ruby version on the centos is 2.0.0.648.

We need to fix the version 1.0.2 on https://github.com/openstack/kolla/blob/stable/pike/docker/fluentd/Dockerfile.j2#L43

We can see the build of image fail too on dockerhub : https://hub.docker.com/r/kolla/centos-binary-fluentd/tags/

[Kevin Tibi (ktibi)]

Without fix :

INFO:kolla.image.build.fluentd:Step 7/8 : RUN ulimit -n 65536 && gem install --minimal-deps activesupport:4.2.9 public_suffix:2.0.5 fluent-plugin-parser fluent-plugin-kubernetes_metadata_filter fluent-plugin-elasticsearch:1.10.2 flue
nt-plugin-grep fluent-plugin-grok-parser:0.3.1 fluent-plugin-rewrite-tag-filter:1.6.0 fluent-plugin-secure-forward && chmod -R 440 /etc/sudoers.d/kolla_fluentd_sudoers && chmod 755 /usr/local/bin/kolla_extend_start && mkdir
-p /var/run/fluentd && chown -R fluentd: /etc/fluentd /var/run/fluentd
INFO:kolla.image.build.fluentd: ---> Running in b34e5d8354ec
INFO:kolla.image.build.fluentd:unable to convert "\x84" from ASCII-8BIT to UTF-8 for lib/active_support/values/unicode_tables.dat, skipping
INFO:kolla.image.build.fluentd:
INFO:kolla.image.build.fluentd:ERROR: Error installing fluent-plugin-kubernetes_metadata_filter:
INFO:kolla.image.build.fluentd: serverengine requires Ruby version >= 2.1.0.

With Fix :

INFO:kolla.image.build.fluentd:Step 7/8 : RUN ulimit -n 65536 && gem install --minimal-deps activesupport:4.2.9 public_suffix:2.0.5 fluent-plugin-parser fluent-plugin-kubernetes_metadata_filter:1.0.2 fluent-plugin-elasticsearch:1.10.
2 fluent-plugin-grep fluent-plugin-grok-parser:0.3.1 fluent-plugin-rewrite-tag-filter:1.6.0 fluent-plugin-secure-forward && chmod -R 440 /etc/sudoers.d/kolla_fluentd_sudoers && chmod 755 /usr/local/bin/kolla_extend_start &&
mkdir -p /var/run/fluentd && chown -R fluentd: /etc/fluentd /var/run/fluentd
INFO:kolla.image.build.fluentd: ---> Running in 28d5875ae951
INFO:kolla.image.build.fluentd:unable to convert "\x84" from ASCII-8BIT to UTF-8 for lib/active_support/values/unicode_tables.dat, skipping
INFO:kolla.image.build.fluentd:
INFO:kolla.image.build.fluentd:Successfully installed concurrent-ruby-1.0.5
INFO:kolla.image.build.fluentd:Successfully installed i18n-0.9.5
INFO:kolla.image.build.fluentd:Successfully installed minitest-5.11.3
INFO:kolla.image.build.fluentd:Successfully installed activesupport-4.2.9
......
......
INFO:kolla.image.build.fluentd:Successfully installed fluent-plugin-kubernetes_metadata_filter-1.0.2

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/563657
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=53a4932106b635581fe2e00cb3d81f91de8799c8
Submitter: Zuul
Branch: stable/pike

commit 53a4932106b635581fe2e00cb3d81f91de8799c8
Author: Juan Badia Payno <email address hidden>
Date: Mon Apr 23 17:05:04 2018 +0200

    fluentd: Fix plugin dependency

    The current fluent-plugin-kubernetes_metadata_filter plugin
    needs ruby version 2.1.0 or higher.

    This patch uses the fluent-plugin-kubernetes_metadata_filter:1.0.2 plugin
    which only requires ruby version 2.0.0 or higher.

    Change-Id: I5067e7f7c71db7405c99913009aef1cfaa3fce20
    Closes-Bug: #1766195
    Closes-Bug: #1766274

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 5.0.3 release.