Add back ELK images

See https://github.com/docker-library/docs/pull/1043 for more details.

library/elasticsearch

@@ -0,0 +1,21 @@
+# this file is generated via https://github.com/docker-library/elasticsearch/blob/47a72b6f1962df04a62616b1c3c32e85b5410639/generate-stackbrew-library.sh
+
+Maintainers: Tianon Gravi <[email protected]> (@tianon),
+             Joseph Ferguson <[email protected]> (@yosifkit)
+GitRepo: https://github.com/docker-library/elasticsearch.git
+
+Tags: 5.6.3, 5.6, 5, latest
+GitCommit: e3b9b5c27ce4ea5fbdbfac57280a98e54bf7528f
+Directory: 5
+
+Tags: 5.6.3-alpine, 5.6-alpine, 5-alpine, alpine
+GitCommit: e3b9b5c27ce4ea5fbdbfac57280a98e54bf7528f
+Directory: 5/alpine
+
+Tags: 2.4.6, 2.4, 2
+GitCommit: 8e87587ac5d6b44a8382a229162c88e65618c30a
+Directory: 2.4
+
+Tags: 2.4.6-alpine, 2.4-alpine, 2-alpine
+GitCommit: 8e87587ac5d6b44a8382a229162c88e65618c30a
+Directory: 2.4/alpine

library/kibana

@@ -0,0 +1,13 @@
+# this file is generated via https://github.com/docker-library/kibana/blob/03f657e02f2fc3f3487dfe98cc98f9870eaaa5c4/generate-stackbrew-library.sh
+
+Maintainers: Tianon Gravi <[email protected]> (@tianon),
+             Joseph Ferguson <[email protected]> (@yosifkit)
+GitRepo: https://github.com/docker-library/kibana.git
+
+Tags: 5.6.0, 5.6, 5, latest
+GitCommit: 2137f27f7c73233a80ac2a34e591ff2685e37d76
+Directory: 5
+
+Tags: 4.6.6, 4.6, 4
+GitCommit: febc4b766dabfc5a30f04373337cd0a0ec997bb2
+Directory: 4.6

library/logstash

@@ -0,0 +1,21 @@
+# this file is generated via https://github.com/docker-library/logstash/blob/ed8e1d89a264eed50f857601c7b4364af66155cd/generate-stackbrew-library.sh
+
+Maintainers: Tianon Gravi <[email protected]> (@tianon),
+             Joseph Ferguson <[email protected]> (@yosifkit)
+GitRepo: https://github.com/docker-library/logstash.git
+
+Tags: 5.6.1, 5.6, 5, latest
+GitCommit: f4da9f064268de461db0c6e1c1ed0ed2cb7b0c94
+Directory: 5
+
+Tags: 5.6.1-alpine, 5.6-alpine, 5-alpine, alpine
+GitCommit: f4da9f064268de461db0c6e1c1ed0ed2cb7b0c94
+Directory: 5/alpine
+
+Tags: 2.4.1, 2.4, 2
+GitCommit: 4f425e9008de3d0375d1749d390029808aed8d96
+Directory: 2.4
+
+Tags: 2.4.1-alpine, 2.4-alpine, 2-alpine
+GitCommit: 19330c802e6f198f015c0c4723a6d86ed449d93f
+Directory: 2.4/alpine