Implemented interaction with docker registry.

registry/config.yml.exmplate

@@ -0,0 +1,48 @@
+version: 0.1
+log:
+  fields:
+    service: registry
+storage:
+  cache:
+    blobdescriptor: inmemory
+  filesystem:
+    rootdirectory: /images
+  delete:
+    enabled: true
+auth:
+  token:
+    realm: http://real IP address OR domain/registry/v2/auth/
+    service: container_registry
+    issuer: token_issuer
+    rootcertbundle: /certs/registry-auth1.crt
+    signingalgorithms:
+      - EdDSA
+      - HS256
+      - ES512
+http:
+  addr: :5000
+  secret: random string
+  headers:
+    X-Content-Type-Options: [nosniff]
+health:
+  storagedriver:
+    enabled: true
+    interval: 10s
+    threshold: 3
+notifications:
+  events:
+    includereferences: true
+  endpoints:
+    - name: register_listener
+      disabled: false
+      url: http://app:9000/registry/v2/event/
+      headers:
+        Authorization: [token_for_notifications]
+      timeout: 1s
+      threshold: 5
+      backoff: 3s
+      ignoredmediatypes:
+        - application/octet-stream
+      ignore:
+        mediatypes:
+          - application/octet-stream