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Remove the 'dns.podman' search domain from cluster nodes' resolv.conf #198

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Merged
ggiguash merged 2 commits into from
Feb 24, 2026
Merged

Remove the 'dns.podman' search domain from cluster nodes' resolv.conf #198

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9b3ceff
Add -dns-search=. to podman run command
Feb 10, 2026
5022fe7
Merge branch 'main' into fix_issue_dns_cncf
ggiguash Feb 24, 2026
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6 changes: 6 additions & 0 deletions src/cluster_manager.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -110,8 +110,13 @@ _add_node() {
done

local network_opts="--network ${network_name}"
local dns_opts=""
if [ "${ISOLATED_NETWORK}" = "0" ]; then
network_opts="${network_opts} --ip ${ip_address}"
# Prevent podman from adding 'dns.podman' to the container's
# /etc/resolv.conf search domains. The extra search domain
# breaks CNCF DNS conformance tests with older dig versions.
dns_opts="--dns-search=."
fi

local port_opts=""
Expand All @@ -126,6 +131,7 @@ _add_node() {
# shellcheck disable=SC2086
sudo podman run --privileged -d \
--ulimit nofile=524288:524288 \
${dns_opts} \
${vol_opts} \
${network_opts} \
${port_opts} \
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