Browse Source

HA: inject public certificates without blocking container

Do not inject public certificates in pacemaker bundles by means
of "podman cp", as this pauses the container for a short amount
of time and can make pacemaker operation fail during that time
window and impact cluster for no reason.

Keep "podman cp" for non-HA containers, as the freeze is short
and doesn't seem to impact podman monitoring anyway.

The new certificate injection only works for podman 1.9+, lower
version won't overwrite the existing certificate.

Adapted from Id7308f028f33716be5e3df6699c3f2c12e33e344, as the
same behaviour is implemented in puppet-tripleo before wallaby.

Change-Id: I14be16052677bf3426a88ec4b5299f9502007472
Related-Bug: #1917868
(cherry picked from commit f6c88d0146)
changes/75/789875/4
Damien Ciabrini 8 months ago
committed by Luigi Toscano
parent
commit
e09d2a192c
  1. 18
      files/certmonger-haproxy-refresh.sh
  2. 23
      files/certmonger-rabbitmq-refresh.sh

18
files/certmonger-haproxy-refresh.sh

@ -36,11 +36,19 @@ cat "$service_certificate" "$ca_path" "$service_key" > "$service_pem"
haproxy_container_name=$($container_cli ps --format="{{.Names}}" | grep -w -E 'haproxy(-bundle-.*-[0-9]+)?')
if [ "$ACTION" == "reload" ]; then
# Refresh the cert at the mount-point
$container_cli cp $service_pem "$haproxy_container_name:/var/lib/kolla/config_files/src-tls/$service_pem"
# Copy the new cert from the mount-point to the real path
$container_cli exec "$haproxy_container_name" cp "/var/lib/kolla/config_files/src-tls$service_pem" "$service_pem"
# Inject the new certificate into the running container
if echo "$haproxy_container_name" | grep -q "^haproxy-bundle"; then
# lp#1917868: Do not use podman cp with HA containers as they get
# frozen temporarily and that can make pacemaker operation fail.
tar -c "$service_pem" | $container_cli exec -i "$haproxy_container_name" tar -C / -xv
# no need to update the mount point, because pacemaker
# recreates the container when it's restarted
else
# Refresh the pem at the mount-point
$container_cli cp $service_pem "$haproxy_container_name:/var/lib/kolla/config_files/src-tls${service_pem}"
# Copy the new pem from the mount-point to the real path
$container_cli exec "$haproxy_container_name" cp "/var/lib/kolla/config_files/src-tls${service_pem}" "$service_pem"
fi
# Set appropriate permissions
$container_cli exec "$haproxy_container_name" chown haproxy:haproxy "$service_pem"

23
files/certmonger-rabbitmq-refresh.sh

@ -5,13 +5,32 @@ container_cli=$(hiera -c /etc/puppet/hiera.yaml container_cli podman)
container_name=$($container_cli ps --format="{{.Names}}" | grep -w -E 'rabbitmq(-bundle-.*-[0-9]+)?')
service_pem="$(hiera -c /etc/puppet/hiera.yaml tripleo::rabbitmq::service_certificate)"
service_crt="$(hiera -c /etc/puppet/hiera.yaml tripleo::rabbitmq::service_certificate.service_certificate)"
service_key="$(hiera -c /etc/puppet/hiera.yaml tripleo::rabbitmq::service_certificate.service_key)"
if echo "$container_name" | grep -q "^rabbitmq-bundle"; then
# lp#1917868: Do not use podman cp with HA containers as they get
# frozen temporarily and that can make pacemaker operation fail.
tar -c "$service_crt" "$service_key" | $container_cli exec -i "$container_name" tar -C / -xv
# no need to update the mount point, because pacemaker
# recreates the container when it's restarted
else
# Refresh the cert at the mount-point
$container_cli cp $service_crt "$container_name:/var/lib/kolla/config_files/src-tls/$service_crt"
# Refresh the key at the mount-point
$container_cli cp $service_key "$container_name:/var/lib/kolla/config_files/src-tls/$service_key"
# Copy the new cert from the mount-point to the real path
$container_cli exec -u root "$container_name" cp "/var/lib/kolla/config_files/src-tls$service_crt" "$service_crt"
# Copy the new key from the mount-point to the real path
$container_cli exec -u root "$container_name" cp "/var/lib/kolla/config_files/src-tls$service_key" "$service_key"
fi
# Copy the new cert from the mount-point to the real path
$container_cli exec "$container_name" cp "/var/lib/kolla/config_files/src-tls$service_pem" "$service_pem"
# Set appropriate permissions
$container_cli exec "$container_name" chown rabbitmq:rabbitmq "$service_pem"
$container_cli exec -u root "$container_name" chown rabbitmq:rabbitmq "$service_crt"
$container_cli exec -u root "$container_name" chown rabbitmq:rabbitmq "$service_key"
# Trigger a pem cache clear in RabbitMQ to read the new certificates
$container_cli exec $container_name rabbitmqctl eval "ssl:clear_pem_cache()."

Loading…
Cancel
Save