Update to v8.0.0-SNAPSHOT

*Warning* Logstash's Elasticsearch output has ecs_compatibility set to v1 by
default. Without it, Logstash now prints the following warning message:

[deprecation.logstash.outputs.elasticsearch] Relying on default value of
`pipeline.ecs_compatibility`, which may change in a future major release of
Logstash. To avoid unexpected changes when upgrading Logstash, please
explicitly declare your desired ECS Compatibility mode.

.env

@@ -1 +1 @@
-ELK_VERSION=7.9.2
+ELK_VERSION=8.0.0-SNAPSHOT

.github/workflows/scripts/run-tests-core.sh

@@ -36,7 +36,7 @@ curl -X POST -D- "http://${ip_kb}:5601/api/saved_objects/index-pattern" \
 	-H 'Content-Type: application/json' \
 	-H "kbn-version: ${ELK_VERSION}" \
 	-u elastic:testpasswd \
-	-d '{"attributes":{"title":"logstash-*","timeFieldName":"@timestamp"}}'
+	-d '{"attributes":{"title":"ecs-logstash-*","timeFieldName":"@timestamp"}}'
 
 log 'Searching index pattern via Kibana API'
 response="$(curl "http://${ip_kb}:5601/api/saved_objects/_find?type=index-pattern" -s -u elastic:testpasswd)"

README.md

@@ -1,7 +1,7 @@
 # Elastic stack (ELK) on Docker
 
 [![Join the chat at https://gitter.im/deviantony/docker-elk](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/deviantony/docker-elk?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-[![Elastic Stack version](https://img.shields.io/badge/ELK-7.9.2-blue.svg?style=flat)](https://github.com/deviantony/docker-elk/issues/539)
+[![Elastic Stack version](https://img.shields.io/badge/ELK-8.0.0-blue.svg?style=flat)](https://github.com/deviantony/docker-elk/issues/543)
 [![Build Status](https://github.com/deviantony/docker-elk/workflows/CI/badge.svg?branch=master)](https://github.com/deviantony/docker-elk/actions?query=workflow%3ACI+branch%3Amaster)
 
 Run the latest version of the [Elastic stack][elk-stack] with Docker and Docker Compose.
@@ -104,7 +104,7 @@ exclusively. Make sure the repository is cloned in one of those locations or fol
 ### Version selection
 
 This repository tries to stay aligned with the latest version of the Elastic stack. The `master` branch tracks the
-current major version (7.x).
+current major version (8.x).
 
 To use a different version of the core Elastic components, simply change the version number inside the `.env` file. If
 you are upgrading an existing stack, please carefully read the note in the next section.
@@ -114,6 +114,7 @@ performing a stack upgrade.**
 
 Older major versions are also supported on separate branches:
 
+* [`release-7.x`](https://github.com/deviantony/docker-elk/tree/release-7.x): 7.x series
 * [`release-6.x`](https://github.com/deviantony/docker-elk/tree/release-6.x): 6.x series
 * [`release-5.x`](https://github.com/deviantony/docker-elk/tree/release-5.x): 5.x series (End-Of-Life)
 
@@ -171,9 +172,8 @@ Remove the `ELASTIC_PASSWORD` environment variable from the `elasticsearch` serv
 
 3. Replace usernames and passwords in configuration files
 
-Use the `kibana_system` user (`kibana` for releases <7.8.0) inside the Kibana configuration file
-(`kibana/config/kibana.yml`) and the `logstash_system` user inside the Logstash configuration file
-(`logstash/config/logstash.yml`) in place of the existing `elastic` user.
+Use the `kibana_system` user inside the Kibana configuration file (`kibana/config/kibana.yml`) and the `logstash_system`
+user inside the Logstash configuration file (`logstash/config/logstash.yml`) in place of the existing `elastic` user.
 
 Replace the password for the `elastic` user inside the Logstash pipeline file (`logstash/pipeline/logstash.conf`).
 
@@ -239,9 +239,9 @@ Create an index pattern via the Kibana API:
 ```console
 $ curl -XPOST -D- 'http://localhost:5601/api/saved_objects/index-pattern' \
     -H 'Content-Type: application/json' \
-    -H 'kbn-version: 7.9.2' \
+    -H 'kbn-version: 8.0.0-SNAPSHOT' \
     -u elastic:<your generated elastic password> \
-    -d '{"attributes":{"title":"logstash-*","timeFieldName":"@timestamp"}}'
+    -d '{"attributes":{"title":"ecs-logstash-*","timeFieldName":"@timestamp"}}'
 ```
 
 The created pattern will automatically be marked as the default index pattern as soon as the Kibana UI is opened for the

docker-stack.yml

@@ -3,7 +3,7 @@ version: '3.3'
 services:
 
   elasticsearch:
-    image: docker.elastic.co/elasticsearch/elasticsearch:7.9.2
+    image: docker.elastic.co/elasticsearch/elasticsearch:8.0.0-SNAPSHOT
     ports:
       - "9200:9200"
       - "9300:9300"
@@ -25,7 +25,7 @@ services:
       replicas: 1
 
   logstash:
-    image: docker.elastic.co/logstash/logstash:7.9.2
+    image: docker.elastic.co/logstash/logstash:8.0.0-SNAPSHOT
     ports:
       - "5000:5000"
       - "9600:9600"
@@ -43,7 +43,7 @@ services:
       replicas: 1
 
   kibana:
-    image: docker.elastic.co/kibana/kibana:7.9.2
+    image: docker.elastic.co/kibana/kibana:8.0.0-SNAPSHOT
     ports:
       - "5601:5601"
     configs:

kibana/config/kibana.yml

@@ -1,6 +1,6 @@
 ---
 ## Default Kibana configuration from Kibana base image.
-## https://github.com/elastic/kibana/blob/master/src/dev/build/tasks/os_packages/docker_generator/templates/kibana_yml.template.js
+## https://github.com/elastic/kibana/blob/master/src/dev/build/tasks/os_packages/docker_generator/templates/kibana_yml.template.ts
 #
 server.name: kibana
 server.host: 0.0.0.0

logstash/pipeline/logstash.conf

@@ -8,6 +8,7 @@ input {
 
 output {
 	elasticsearch {
+		ecs_compatibility => "v1"
 		hosts => "elasticsearch:9200"
 		user => "elastic"
 		password => "changeme"