dcd5159c17
Kayobe has a workaround for CentOS cloud images which contain a bogus nameserver entry in /etc/resolv.conf. By setting overcloud_host_image_workaround_resolv_enabled to true, the entry would be removed. Previously we removed a specific IP address - 10.0.2.3 - that was present in the CentOS 7 images. However, it seems that CentOS 8 images have a different IP - 192.168.122.1. This change fixes the issue and becomes resilient to future changes by matching any IP address. This should be fairly safe, since this workaround is opt-in. Change-Id: I9323a38cb2bb627ff56f5713900be00595ea8d4b Story: 2006574 Task: 39484
36 lines
1.4 KiB
YAML
36 lines
1.4 KiB
YAML
---
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# The CentOS cloud images have a bogus name server entry in /etc/resolv.conf,
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# 192.168.122.1. Cloud-init only appends name server entries to this file, and
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# will not remove this bogus entry. Typically this leads to a delay of around
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# 30 seconds when connecting via SSH, due to a timeout in NSS. The workaround
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# employed here is to remove this bogus entry from the image using
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# virt-customize, if it exists. See https://bugs.centos.org/view.php?id=14369.
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- name: Ensure the overcloud host image has bogus name server entries removed
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hosts: seed
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tags:
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- overcloud-host-image-workaround
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tasks:
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- block:
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- name: Ensure libguestfs-tools is installed
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command: >
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docker exec bifrost_deploy
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bash -c '
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ansible localhost
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--connection local
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--become
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-m yum
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-a "name=libguestfs-tools state=present"'
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- name: Ensure the overcloud host image has bogus name server entries removed
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command: >
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docker exec bifrost_deploy
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bash -c '
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export LIBGUESTFS_BACKEND=direct &&
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ansible localhost
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--connection local
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--become
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-m command
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-a "virt-customize -a /httpboot/deployment_image.qcow2 --edit \"/etc/resolv.conf:s/^nameserver .*\..*\..*\..*\$//\""'
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when: overcloud_host_image_workaround_resolv_enabled | bool
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