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Bug
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Resolution: Done
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Normal
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Logging 5.7.0
Description of problem:
When forwarding logs to an external Loki instance without any client TLS certs, the tlsSecurityProfile configuration is not added to Loki sink in the generated Vector config.
Version-Release number of selected component (if applicable):
Cluster-logging.v5.7.0
Loki-operator.v5.7.0
Server Version: 4.13.0-0.nightly-2023-03-19-052243
How reproducible:
Always
Steps to Reproduce:
*Add a tlsSecurityProfile in the global apiserver/cluster config. If no config is set, intermediate profile will be used.
oc edit apiserver/cluster
spec:
audit:
profile: Default
tlsSecurityProfile:
intermediate: {}
type: Intermediate
*Create secret in openshift-logging namespace for forwarding logs to an externally hosted HTTPS Loki instance.
oc create secret generic loki-client -n openshift-logging --from-literal=username=<Loki Grafana username> --from-literal=password=<loki Grafana API token>
*Create a CLF to forward to the external Loki instance with the tlsSecurityProfile feature gate enabled.
apiVersion: logging.openshift.io/v1
kind: ClusterLogForwarder
metadata:
name: instance
namespace: openshift-logging
annotations:
logging.openshift.io/preview-tls-security-profile: enabled
spec:
outputs:
- name: loki-server
type: loki
url: https://logs-prod3.grafana.net
secret:
name: loki-client
pipelines:
- name: to-loki
inputRefs:
- application
outputRefs:
- loki-server
*Create a ClusterLogging instance.
apiVersion: "logging.openshift.io/v1" kind: "ClusterLogging" metadata: name: "instance" namespace: "openshift-logging" spec: managementState: "Managed" collection: type: vector
*Extract and check the Vector config.
[sinks.loki_server] type = "loki" inputs = ["loki_server_remap"] endpoint = "https://logs-prod3.grafana.net" out_of_order_action = "accept" healthcheck.enabled = false [sinks.loki_server.encoding] codec = "json" [sinks.loki_server.labels] kubernetes_container_name = "{{kubernetes.container_name}}" kubernetes_host = "${VECTOR_SELF_NODE_NAME}" kubernetes_namespace_name = "{{kubernetes.namespace_name}}" kubernetes_pod_name = "{{kubernetes.pod_name}}" log_type = "{{log_type}}" # Basic Auth Config [sinks.loki_server.auth] strategy = "basic" user = "REDACTED" password = "REDACTED" [transforms.add_nodename_to_metric] type = "remap" inputs = ["internal_metrics"] source = ''' .tags.hostname = get_env_var!("VECTOR_SELF_NODE_NAME") '''
Additional info:
*However if we add tls certs for the Loki output secret and create a CLF to forward logs to an external Lokistack instance, the tlsSecurityProfile ciphers and min TLS version is added to the generated Vector config.
oc -n openshift-logging create secret generic lokistack-gateway-bearer-token --from-literal=token=$TOKEN --from-literal=ca-bundle.crt="$(oc -n openshift-logging get cm lokistack-instance-ca-bundle -o json | jq -r '.data."service-ca.crt"')"
apiVersion: logging.openshift.io/v1 kind: ClusterLogForwarder metadata: name: instance namespace: openshift-logging annotations: logging.openshift.io/preview-tls-security-profile: enabled spec: outputs: - name: loki-app type: loki url: https://lokistack-instance-gateway-http.openshift-logging.svc:8080/api/logs/v1/application/ secret: name: lokistack-gateway-bearer-token - name: loki-infra type: loki url: https://lokistack-instance-gateway-http.openshift-logging.svc:8080/api/logs/v1/infrastructure/ secret: name: lokistack-gateway-bearer-token - name: loki-audit type: loki url: https://lokistack-instance-gateway-http.openshift-logging.svc:8080/api/logs/v1/audit/ secret: name: lokistack-gateway-bearer-token pipelines: - name: send-app-logs inputRefs: - application outputRefs: - loki-app - name: send-infra-logs inputRefs: - infrastructure outputRefs: - loki-infra - name: send-audit-logs inputRefs: - audit outputRefs: - loki-audit
Example sink config generated for app logs.
[sinks.loki_app.tls] enabled = true min_tls_version = "VersionTLS12" ciphersuites = "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,ECDHE-ECDSA-AES128-GCM-SHA256,ECDHE-RSA-AES128-GCM-SHA256,ECDHE-ECDSA-AES256-GCM-SHA384,ECDHE-RSA-AES256-GCM-SHA384,ECDHE-ECDSA-CHACHA20-POLY1305,ECDHE-RSA-CHACHA20-POLY1305,DHE-RSA-AES128-GCM-SHA256,DHE-RSA-AES256-GCM-SHA384" ca_file = "/var/run/ocp-collector/secrets/lokistack-gateway-bearer-token/ca-bundle.crt"
