openstack/openstack-helm-infra
Code Issues Proposed changes

Remove systemd-resolved to fix Ubuntu 20.04 issues

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With Ubuntu 20.04 DNS would keep failing until systemd-resolved
is disabled and stopped.

Change-Id: I22ad34ac027eadfb723879bd86c99ac79aedee8a
This commit is contained in:
ahmesyed 2022-06-15 12:34:02 -05:00 committed by Kostyantyn Kalynovskyi
parent 4f0f5155e7
commit 1147988b8e
1 changed files with 11 additions and 3 deletions
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14
tools/gate/deploy-k8s.sh
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@ -39,8 +39,11 @@ function configure_resolvconf {
old_ns=$(grep -P --no-filename "^nameserver\s+(?!127\.0\.0\.|${kube_dns_ip})" \
/etc/resolv.conf /run/systemd/resolve/resolv.conf | sort | uniq)
# Add kube-dns ip to /etc/resolv.conf for local usage
sudo bash -c "echo 'nameserver ${kube_dns_ip}' > /etc/resolv.conf"
sudo cp --remove-destination /run/systemd/resolve/resolv.conf /etc/resolv.conf
# Insert kube DNS as first nameserver instead of entirely overwriting /etc/resolv.conf
grep -q "nameserver ${kube_dns_ip}" /etc/resolv.conf || \
sudo sed -i -e "1inameserver ${kube_dns_ip}" /etc/resolv.conf
if [ -z "${HTTP_PROXY}" ]; then
sudo bash -c "printf 'nameserver 8.8.8.8\nnameserver 8.8.4.4\n' > /run/systemd/resolve/resolv.conf"
sudo bash -c "printf 'nameserver 8.8.8.8\nnameserver 8.8.4.4\n' >> /etc/resolv.conf"
@ -53,12 +56,17 @@ function configure_resolvconf {
sudo bash -c "echo 'search svc.cluster.local cluster.local' >> ${file}"
sudo bash -c "echo 'options ndots:5 timeout:1 attempts:1' >> ${file}"
done
sudo systemctl disable systemd-resolved
sudo systemctl stop systemd-resolved
}
# NOTE: Clean Up hosts file
sudo sed -i '/^127.0.0.1/c\127.0.0.1 localhost localhost.localdomain localhost4localhost4.localdomain4' /etc/hosts
sudo sed -i '/^::1/c\::1 localhost6 localhost6.localdomain6' /etc/hosts
if ! grep -qF "127.0.1.1" /etc/hosts; then
echo "127.0.1.1 $(hostname)" | sudo tee -a /etc/hosts
fi
configure_resolvconf
# shellcheck disable=SC1091