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Ability to specify a certificate and a CA to be used for galera cluster communication (GCOMM, SST). Updates to the certificate used for galera automatically triggers a rolling restart of the galera pods, without service disruption. When the Galera CR is configured to use TLS, the mariadbdatabase CR creates DB users that still allow connection to the DB without using TLS. This is because Openstack clients currently cannot be configured to connect via TLS or via plain TCP. This specific part will be addressed in a subsequent commit.
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,75 @@ | ||
# the cluster-wide issuer, used to generate a root certificate | ||
apiVersion: cert-manager.io/v1 | ||
kind: ClusterIssuer | ||
metadata: | ||
name: selfsigned-issuer | ||
spec: | ||
selfSigned: {} | ||
--- | ||
# The root certificate. they cert/key/ca will be generated in the secret 'root-secret' | ||
apiVersion: cert-manager.io/v1 | ||
kind: Certificate | ||
metadata: | ||
name: my-selfsigned-ca | ||
namespace: openstack | ||
spec: | ||
isCA: true | ||
commonName: my-selfsigned-ca | ||
secretName: root-secret | ||
privateKey: | ||
algorithm: ECDSA | ||
size: 256 | ||
issuerRef: | ||
name: selfsigned-issuer | ||
kind: ClusterIssuer | ||
group: cert-manager.io | ||
--- | ||
# The CA issuer for galera, uses the certificate from `my-selfsigned-ca` | ||
apiVersion: cert-manager.io/v1 | ||
kind: Issuer | ||
metadata: | ||
name: my-ca-issuer | ||
namespace: openstack | ||
spec: | ||
ca: | ||
secretName: root-secret | ||
--- | ||
# The certificate used by all galera replicas for GCOMM and SST. | ||
# The replicas in the galera statefulset all share the same | ||
# certificate, so the latter requires wildcard in dnsNames for TLS | ||
# validation. | ||
apiVersion: cert-manager.io/v1 | ||
kind: Certificate | ||
metadata: | ||
name: galera-cert | ||
spec: | ||
secretName: galera-tls | ||
secretTemplate: | ||
labels: | ||
mariadb-ref: openstack | ||
duration: 6h | ||
renewBefore: 1h | ||
subject: | ||
organizations: | ||
- cluster.local | ||
commonName: openstack-galera | ||
isCA: false | ||
privateKey: | ||
algorithm: RSA | ||
encoding: PKCS8 | ||
size: 2048 | ||
usages: | ||
- server auth | ||
- client auth | ||
dnsNames: | ||
- "openstack.openstack.svc" | ||
- "openstack.openstack.svc.cluster.local" | ||
- "*.openstack-galera" | ||
- "*.openstack-galera.openstack" | ||
- "*.openstack-galera.openstack.svc" | ||
- "*.openstack-galera.openstack.svc.cluster" | ||
- "*.openstack-galera.openstack.svc.cluster.local" | ||
issuerRef: | ||
name: my-ca-issuer | ||
group: cert-manager.io | ||
kind: Issuer |
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@@ -0,0 +1,12 @@ | ||
apiVersion: mariadb.openstack.org/v1beta1 | ||
kind: Galera | ||
metadata: | ||
name: openstack | ||
spec: | ||
secret: osp-secret | ||
storageClass: local-storage | ||
storageRequest: 500M | ||
replicas: 3 | ||
tls: | ||
secretName: galera-tls | ||
caSecretName: galera-tls |
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