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Make /etc/hosts write non-fatal for non-root container execution #3985

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Merged
lpcox merged 2 commits into from
Apr 16, 2026
+5 −3
Merged

Make /etc/hosts write non-fatal for non-root container execution #3985

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7285b32
Make /etc/hosts write non-fatal for non-root container execution
lpcox Apr 16, 2026
9459dd3
Fix /etc/hosts append stderr suppression in non-root path
Copilot Apr 16, 2026
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8 changes: 5 additions & 3 deletions run_containerized.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -285,9 +285,11 @@ configure_host_dns() {
# Add host.docker.internal mapping to /etc/hosts
# Check if the entry already exists to avoid duplicates
if ! grep -q "host.docker.internal" /etc/hosts 2>/dev/null; then
log_info "Adding host.docker.internal mapping to /etc/hosts"
echo "$HOST_IP host.docker.internal" >> /etc/hosts
log_info "DNS mapping configured: $HOST_IP -> host.docker.internal"
if { echo "$HOST_IP host.docker.internal" >> /etc/hosts; } 2>/dev/null; then
log_info "DNS mapping configured: $HOST_IP -> host.docker.internal"
else
log_warn "Cannot write to /etc/hosts (running as non-root?); host.docker.internal mapping skipped"
fi
else
log_info "host.docker.internal already exists in /etc/hosts"
fi
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