docs: 8.0 release notes and breaking changes

[bmorelli25]

Summary

• Adds release notes and breaking changes for 8.0.
• Elastic Cloud breaking changes will be also be added to the ECE and ESS docs as described in https://github.com/elastic/cloud/issues/96752.

Preview this PR

• 8.0.0 release notes
• 8.0.0 breaking changes

Related

• APM documentation updates observability-docs#1482.
• https://github.com/elastic/cloud/issues/96752#issuecomment-1031900426

[apmmachine]

💔 Tests Failed

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2022-02-08T22:47:00.744+0000

• Duration: 61 min 47 sec

Test stats 🧪

Test	Results
Failed	1
Passed	5625
Skipped	19
Total	5645

Test errors

Expand to view the tests failures

Build and Test / System and Environment Tests / TestFleetIntegrationBeatsMonitoring – github.com/elastic/apm-server/systemtest

Expand to view the error details

 Failed 

Expand to view the stacktrace

 === RUN   TestFleetIntegrationBeatsMonitoring
2022/02/08 23:17:48 Building image elastic-agent-systemtest:8.1.0-1cb1f3ad-SNAPSHOT...
2022/02/08 23:17:49 Built image elastic-agent-systemtest:8.1.0-1cb1f3ad-SNAPSHOT
2022/02/08 23:17:49 Starting container id: a1c8ed8cbad8 image: elastic-agent-systemtest:8.1.0-1cb1f3ad-SNAPSHOT
2022/02/08 23:17:50 Waiting for container id a1c8ed8cbad8 image: elastic-agent-systemtest:8.1.0-1cb1f3ad-SNAPSHOT
2022/02/08 23:17:54 Container is ready id: a1c8ed8cbad8 image: elastic-agent-systemtest:8.1.0-1cb1f3ad-SNAPSHOT
    fleet_test.go:78: 
        	Error Trace:	fleet_test.go:78
        	Error:      	Not equal: 
        	            	expected: map[string]interface {}{"output":map[string]interface {}{"events":map[string]interface {}{"acked":15, "active":0, "batches":1, "failed":0, "toomany":0, "total":15}}}
        	            	actual  : map[string]interface {}{"config":map[string]interface {}{"module":map[string]interface {}{"running":0, "starts":0, "stops":0}, "reloads":0, "scans":0}, "output":map[string]interface {}{"events":map[string]interface {}{"acked":0, "active":0, "batches":0, "dropped":0, "duplicates":0, "failed":0, "toomany":0, "total":0}, "read":map[string]interface {}{"bytes":0, "errors":0}, "type":"elasticsearch", "write":map[string]interface {}{"bytes":0, "errors":0}}, "pipeline":map[string]interface {}{"clients":0, "events":map[string]interface {}{"active":0, "dropped":0, "failed":0, "filtered":0, "published":0, "retry":0, "total":0}, "queue":map[string]interface {}{"acked":0, "max_events":4096}}}
        	            	
        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,10 +1,46 @@
        	            	-(map[string]interface {}) (len=1) {
        	            	- (string) (len=6) "output": (map[string]interface {}) (len=1) {
        	            	-  (string) (len=6) "events": (map[string]interface {}) (len=6) {
        	            	-   (string) (len=5) "acked": (float64) 15,
        	            	+(map[string]interface {}) (len=3) {
        	            	+ (string) (len=6) "config": (map[string]interface {}) (len=3) {
        	            	+  (string) (len=6) "module": (map[string]interface {}) (len=3) {
        	            	+   (string) (len=7) "running": (float64) 0,
        	            	+   (string) (len=6) "starts": (float64) 0,
        	            	+   (string) (len=5) "stops": (float64) 0
        	            	+  },
        	            	+  (string) (len=7) "reloads": (float64) 0,
        	            	+  (string) (len=5) "scans": (float64) 0
        	            	+ },
        	            	+ (string) (len=6) "output": (map[string]interface {}) (len=4) {
        	            	+  (string) (len=6) "events": (map[string]interface {}) (len=8) {
        	            	+   (string) (len=5) "acked": (float64) 0,
        	            	    (string) (len=6) "active": (float64) 0,
        	            	-   (string) (len=7) "batches": (float64) 1,
        	            	+   (string) (len=7) "batches": (float64) 0,
        	            	+   (string) (len=7) "dropped": (float64) 0,
        	            	+   (string) (len=10) "duplicates": (float64) 0,
        	            	    (string) (len=6) "failed": (float64) 0,
        	            	    (string) (len=7) "toomany": (float64) 0,
        	            	-   (string) (len=5) "total": (float64) 15
        	            	+   (string) (len=5) "total": (float64) 0
        	            	+  },
        	            	+  (string) (len=4) "read": (map[string]interface {}) (len=2) {
        	            	+   (string) (len=5) "bytes": (float64) 0,
        	            	+   (string) (len=6) "errors": (float64) 0
        	            	+  },
        	            	+  (string) (len=4) "type": (string) (len=13) "elasticsearch",
        	            	+  (string) (len=5) "write": (map[string]interface {}) (len=2) {
        	            	+   (string) (len=5) "bytes": (float64) 0,
        	            	+   (string) (len=6) "errors": (float64) 0
        	            	+  }
        	            	+ },
        	            	+ (string) (len=8) "pipeline": (map[string]interface {}) (len=3) {
        	            	+  (string) (len=7) "clients": (float64) 0,
        	            	+  (string) (len=6) "events": (map[string]interface {}) (len=7) {
        	            	+   (string) (len=6) "active": (float64) 0,
        	            	+   (string) (len=7) "dropped": (float64) 0,
        	            	+   (string) (len=6) "failed": (float64) 0,
        	            	+   (string) (len=8) "filtered": (float64) 0,
        	            	+   (string) (len=9) "published": (float64) 0,
        	            	+   (string) (len=5) "retry": (float64) 0,
        	            	+   (string) (len=5) "total": (float64) 0
        	            	+  },
        	            	+  (string) (len=5) "queue": (map[string]interface {}) (len=2) {
        	            	+   (string) (len=5) "acked": (float64) 0,
        	            	+   (string) (len=10) "max_events": (float64) 4096
        	            	   }
        	Test:       	TestFleetIntegrationBeatsMonitoring
    fleet_test.go:151: elastic-agent logs: {"log.level":"info","@timestamp":"2022-02-08T23:17:50.736Z","log.origin":{"file.name":"cmd/enroll_cmd.go","file.line":455},"message":"Starting enrollment to URL: https://fleet-server:8220/","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.507Z","log.origin":{"file.name":"cmd/enroll_cmd.go","file.line":253},"message":"Elastic Agent might not be running; unable to trigger restart","ecs.version":"1.6.0"}
        Successfully enrolled the Elastic Agent.
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.615Z","log.origin":{"file.name":"application/application.go","file.line":68},"message":"Detecting execution mode","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.617Z","log.origin":{"file.name":"application/application.go","file.line":92},"message":"Agent is managed by Fleet","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.617Z","log.origin":{"file.name":"capabilities/capabilities.go","file.line":59},"message":"capabilities file not found in /usr/share/elastic-agent/state/capabilities.yml","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.978Z","log.logger":"composable.providers.docker","log.origin":{"file.name":"docker/docker.go","file.line":43},"message":"Docker provider skipped, unable to connect: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.979Z","log.logger":"api","log.origin":{"file.name":"api/server.go","file.line":62},"message":"Starting stats endpoint","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.979Z","log.origin":{"file.name":"application/managed_mode.go","file.line":290},"message":"Agent is starting","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:51.979Z","log.logger":"api","log.origin":{"file.name":"api/server.go","file.line":64},"message":"Metrics endpoint listening on: /usr/share/elastic-agent/state/data/tmp/elastic-agent.sock (configured: unix:///usr/share/elastic-agent/state/data/tmp/elastic-agent.sock)","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:53.630Z","log.origin":{"file.name":"stateresolver/stateresolver.go","file.line":48},"message":"New State ID is Gqs3zhBh","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:53.630Z","log.origin":{"file.name":"stateresolver/stateresolver.go","file.line":49},"message":"Converging state requires execution of 2 step(s)","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:53.887Z","log.origin":{"file.name":"operation/operator.go","file.line":284},"message":"operation 'operation-install' skipped for apm-server.8.1.0-SNAPSHOT","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:54.043Z","log.origin":{"file.name":"log/reporter.go","file.line":40},"message":"2022-02-08T23:17:54Z - message: Application: apm-server--8.1.0-SNAPSHOT[cfdcdbdc-638d-4dec-b4d6-352503e33df1]: State changed to STARTING: Starting - type: 'STATE' - sub_type: 'STARTING'","ecs.version":"1.6.0"}
        {"log.level":"info","@timestamp":"2022-02-08T23:17:55.119Z","log.origin":{"file.name":"log/reporter.go","file.line":40},"message":"2022-02-08T23:17:55Z - message: Application: apm-server--8.1.0-SNAPSHOT[cfdcdbdc-638d-4dec-b4d6-352503e33df1]: State changed to RUNNING: Running - type: 'STATE' - sub_type: 'RUNNING'","ecs.version":"1.6.0"}
--- FAIL: TestFleetIntegrationBeatsMonitoring (19.02s)
 

Steps errors

Expand to view the steps failures

Run Linux tests

• Took 14 min 47 sec . View more details here
• Description: ./.ci/scripts/linux-test.sh

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• /hey-apm : Run the hey-apm benchmark.

• /package : Generate and publish the docker images.

• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)