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Allow customize http vhost config using HttpdCustomization.CustomConfigSecret #490

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@stuggi stuggi commented Jan 21, 2025

This change allows to customize the httpd vhost config using this parameter to specify a secret that contains service config data. The content of each provided snippet gets rendered as a go template and placed into /etc/httpd/conf/httpd_custom__ .
At the end of the vhost config in the default httpd template these custom configs get included using Include conf/httpd_custom_<endpoint>_*.

For information on how sections in httpd configuration get merged, check section "How the sections are merged" in https://httpd.apache.org/docs/current/sections.html#merging

All possible parameters which can be use in a template can be looked up in the -config-data secret of the service like: $ oc get secret -n openstack heat-config-data -o json | jq -r .data.templatingParameters | base64 -d

or in the running pod of the service in the file:
$ cat /var/lib/config-data/default/templatingParameters

The content is a versioned dump of the parameters of the service operator, like:

DatabaseConnection: mysql+pymysql://user:[email protected]/keystone?read_default_file=/etc/my.cnf KeystoneEndpointInternal: https://keystone-internal.openstack.svc:5000 TransportURL: rabbit://user:[email protected]:5671/?ssl=1 VHosts:
    internal:
        Override: false
        SSLCertificateFile: /etc/pki/tls/certs/internal.crt
        SSLCertificateKeyFile: /etc/pki/tls/private/internal.key
        ServerName: keystone-internal.openstack.svc
        TLS: true
    public:
        Override: false
        SSLCertificateFile: /etc/pki/tls/certs/public.crt
        SSLCertificateKeyFile: /etc/pki/tls/private/public.key
        ServerName: keystone-public.openstack.svc
        TLS: true
...

Depends-On: openstack-k8s-operators/lib-common#591
Depends-On: openstack-k8s-operators/lib-common#593

Jira: https://issues.redhat.com/browse/OSPRH-13100

…igSecret

This change allows to customize the httpd vhost config using this parameter
to specify a secret that contains service config data. The content of each
provided snippet gets rendered as a go template and placed into
/etc/httpd/conf/httpd_custom_<endpoint>_<key> .
At the end of the vhost config in the default httpd template these custom
configs get included using `Include conf/httpd_custom_<endpoint>_*`.

For information on how sections in httpd configuration get merged, check section
"How the sections are merged" in https://httpd.apache.org/docs/current/sections.html#merging

All possible parameters which can be use in a template can be looked up
in the <service>-config-data secret of the service like:
$ oc get secret -n openstack heat-config-data -o json | jq -r .data.templatingParameters | base64 -d

or in the running pod of the service in the file:
$ cat /var/lib/config-data/default/templatingParameters

The content is a versioned dump of the parameters of the service operator, like:

~~~
DatabaseConnection: mysql+pymysql://user:[email protected]/keystone?read_default_file=/etc/my.cnf
KeystoneEndpointInternal: https://keystone-internal.openstack.svc:5000
TransportURL: rabbit://user:[email protected]:5671/?ssl=1
VHosts:
    internal:
        Override: false
        SSLCertificateFile: /etc/pki/tls/certs/internal.crt
        SSLCertificateKeyFile: /etc/pki/tls/private/internal.key
        ServerName: keystone-internal.openstack.svc
        TLS: true
    public:
        Override: false
        SSLCertificateFile: /etc/pki/tls/certs/public.crt
        SSLCertificateKeyFile: /etc/pki/tls/private/public.key
        ServerName: keystone-public.openstack.svc
        TLS: true
...
~~~

Depends-On: openstack-k8s-operators/lib-common#591
Depends-On: openstack-k8s-operators/lib-common#593

Jira: https://issues.redhat.com/browse/OSPRH-13100

Signed-off-by: Martin Schuppert <[email protected]>
@openshift-ci openshift-ci bot requested review from bshephar and dprince January 21, 2025 15:54
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openshift-ci bot commented Jan 21, 2025

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: stuggi

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@@ -278,6 +292,8 @@ func (r *HeatAPIReconciler) SetupWithManager(mgr ctrl.Manager) error {
// watch the config CMs we don't own
Watches(&corev1.ConfigMap{},
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@stuggi stuggi Jan 21, 2025

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could probably drop CMs ? think they are no longer used, but its not strictly related to this pr and could be a follow up

@@ -280,6 +294,8 @@ func (r *HeatCfnAPIReconciler) SetupWithManager(mgr ctrl.Manager) error {
// watch the config CMs we don't own
Watches(&corev1.ConfigMap{},
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same as for api

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