[doc] fix some links (#737)

- Update oss docker image links to new Elastic registry
- Fix some other links

apm-server/README.md

@@ -151,7 +151,7 @@ about our development and testing process.
 [affinity]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity
 [annotations]: https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/
 [apm server docker image]: https://www.elastic.co/guide/en/apm/server/7.8/running-on-docker.html
-[apm server oss docker image]: https://www.docker.elastic.co/#apm-server-7-8-0-oss
+[apm server oss docker image]: https://www.docker.elastic.co/r/apm/apm-server-oss
 [default elasticsearch helm chart]: https://github.com/elastic/helm-charts/tree/7.8/elasticsearch/README.md#default
 [environment variables]: https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/#using-environment-variables-inside-of-your-config
 [environment from variables]: https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#configure-all-key-value-pairs-in-a-configmap-as-container-environment-variables

elasticsearch/README.md

@@ -402,7 +402,7 @@ about our development and testing process.
 [docker for mac]: https://github.com/elastic/helm-charts/tree/7.8/elasticsearch/examples/docker-for-mac
 [elasticsearch cluster health status params]: https://www.elastic.co/guide/en/elasticsearch/reference/7.8/cluster-health.html#request-params
 [elasticsearch docker image]: https://www.elastic.co/guide/en/elasticsearch/reference/7.8/docker.html
-[elasticsearch oss docker image]: https://www.docker.elastic.co/#elasticsearch-7-8-0-oss
+[elasticsearch oss docker image]: https://www.docker.elastic.co/r/elasticsearch/elasticsearch-oss
 [environment variables]: https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/#using-environment-variables-inside-of-your-config
 [environment from variables]: https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#configure-all-key-value-pairs-in-a-configmap-as-container-environment-variables
 [examples]: https://github.com/elastic/helm-charts/tree/7.8/elasticsearch/examples/

filebeat/README.md

@@ -195,8 +195,8 @@ about our development and testing process.
 [examples/oss]: https://github.com/elastic/helm-charts/tree/7.8/filebeat/examples/oss
 [examples/security]: https://github.com/elastic/helm-charts/tree/7.8/filebeat/examples/security
 [filebeat docker image]: https://www.elastic.co/guide/en/beats/filebeat/7.8/running-on-docker.html
-[filebeat oss docker image]: https://www.docker.elastic.co/#filebeat-7-8-0-oss
-[filebeat output]: https://www.elastic.co/guide/en/beats/filebeat/7.8/configuring-output.html
+[filebeat oss docker image]: https://www.docker.elastic.co/r/beats/filebeat-oss
+[filebeat outputs]: https://www.elastic.co/guide/en/beats/filebeat/7.8/configuring-output.html
 [helm]: https://helm.sh
 [hostNetwork]: https://kubernetes.io/docs/concepts/policy/pod-security-policy/#host-namespaces
 [hostPath]: https://kubernetes.io/docs/concepts/storage/volumes/#hostpath

kibana/README.md

@@ -212,12 +212,13 @@ about our development and testing process.
 [examples]: https://github.com/elastic/helm-charts/tree/7.8/kibana/examples
 [examples/oss]: https://github.com/elastic/helm-charts/tree/7.8/kibana/examples/oss
 [examples/security]: https://github.com/elastic/helm-charts/tree/7.8/kibana/examples/security
+[gke]: https://cloud.google.com/kubernetes-engine
 [helm]: https://helm.sh
 [imagePullPolicy]: https://kubernetes.io/docs/concepts/containers/images/#updating-images
 [imagePullSecrets]: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/#create-a-pod-that-uses-your-secret
 [ingress]: https://kubernetes.io/docs/concepts/services-networking/ingress/
 [kibana docker image]: https://www.elastic.co/guide/en/kibana/7.8/docker.html
-[kibana oss docker image]: https://www.docker.elastic.co/#kibana-7-8-0-oss
+[kibana oss docker image]: https://www.docker.elastic.co/r/kibana/kibana-oss
 [kubernetes secrets]: https://kubernetes.io/docs/concepts/configuration/secret/
 [labels]: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
 [lifecycle hooks]: https://kubernetes.io/docs/concepts/containers/container-lifecycle-hooks/

logstash/README.md

@@ -204,7 +204,7 @@ about our development and testing process.
 [kubernetes secrets]: https://kubernetes.io/docs/concepts/configuration/secret/
 [labels]: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
 [logstash docker image]: https://www.elastic.co/guide/en/logstash/7.8/docker.html
-[logstash oss docker image]: https://www.docker.elastic.co/#logstash-7-8-0-oss
+[logstash oss docker image]: https://www.docker.elastic.co/r/logstash/logstash-oss
 [maxUnavailable]: https://kubernetes.io/docs/tasks/run-application/configure-pdb/#specifying-a-poddisruptionbudget
 [node affinity settings]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#node-affinity-beta-feature
 [nodeSelector]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector

metricbeat/README.md

@@ -227,6 +227,7 @@ about our development and testing process.
 [kubernetes secrets]: https://kubernetes.io/docs/concepts/configuration/secret/
 [labels]: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
 [metricbeat docker image]: https://www.elastic.co/guide/en/beats/metricbeat/7.8/running-on-docker.html
+[metricbeat oss docker image]: https://www.docker.elastic.co/r/beats/metricbeat-oss
 [priorityClass]: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
 [nodeSelector]: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
 [probe]: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes