created dockerfile and compose for registry browser

README.md

@@ -125,5 +125,6 @@ http://<ip or domain name>:5000/v2/<repo-name>/tags/list
 | Influxdb | Series dB |
 | Grafana | Pretty Graphs |
 | Docker Registry | To hold docker images |
+| Docker Registry Browser | To Browse the Registry |
 
 ![Automation Framework Compose](diagrams/automation_framework_compose.png)

diagrams/automation_framework_compose.py

@@ -30,7 +30,10 @@ def main():
                 python_container = Python('APIs\nOther Microservices')
 
             with Cluster('Docker Registry'):
-                docker_registry_container = Docker('Docker Registry:5000')
+                docker_registry_container = Docker('Docker Registry\ntcp:5000')
+
+            with Cluster('Docker Registry Browser'):
+                docker_registry_browser_container = Python('Docker Registry Browser\ntcp:8088')
 
             with Cluster('BatFish'):
                 batfish_container = Custom('BatFish\ntcp:8888\ntcp:9997\ntcp:9996', 'custom_icons/BatFish.png')

docker/compose/docker-compose-rh-registry-browser.yml

@@ -0,0 +1,15 @@
+---
+version: '3.7'
+services:
+    rh-registry-browser:
+        build:
+            context: ../dockerfile
+            dockerfile: Dockerfile-rh-registry-browser
+        image: rh-registry-browser:latest
+        hostname: rh-registry-browser
+        container_name: rh-registry-browser
+        ports:
+            - "8088:80"
+        environment:
+            REGISTRY_SERVER: http://10.0.0.101
+        restart: on-failure

docker/dockerfile/Dockerfile-rh-registry-browser

@@ -0,0 +1,17 @@
+FROM registry.access.redhat.com/ubi8/python-38
+
+LABEL version="2021.6.3.001"
+LABEL description="Docker Registry Browser RHEL8"
+LABEL maintainer="Ben Trachtenberg"
+
+COPY ./registry-browser /registry-browser
+
+WORKDIR /registry-browser
+
+RUN pip install --upgrade pip \
+    && pip install --upgrade setuptools wheel \
+    && pip install -r requirements.txt
+
+EXPOSE 80/tcp
+
+ENTRYPOINT ["python", "run_web_app.py"]

docker/dockerfile/registry-browser/run_web_app.py

@@ -0,0 +1,3 @@
+from web_app import run_local_server
+
+run_local_server('0.0.0.0', 80)

docker/dockerfile/registry-browser/web_app.py

@@ -1,19 +1,22 @@
 """
 Repository Browser Web Server
 """
+import os
 import flask
 from flask import Flask
 from flask import render_template
 from registry_browser import DockerRegistryApi
 
 
 app = Flask(__name__, template_folder='./templates')
+REGISTRY_SERVER = os.environ.get('REGISTRY_SERVER') or 'http://127.0.0.1'
 
+print(f'USING REGISTRY_SERVER {REGISTRY_SERVER}')
 
 @app.route('/', methods=['GET'])
 def home():
     if flask.request.method == 'GET':
-        registry = DockerRegistryApi('http://10.0.0.101')
+        registry = DockerRegistryApi(REGISTRY_SERVER)
         return render_template(
             'home.html',
             title='Docker Registry Browser Home',
@@ -28,7 +31,7 @@ def home():
 @app.route('/repository/<repository_name>', methods=['GET'])
 def repository(repository_name):
     if flask.request.method == 'GET':
-        registry = DockerRegistryApi('http://10.0.0.101')
+        registry = DockerRegistryApi(REGISTRY_SERVER)
         return render_template(
             'repository-info.html',
             title=f'Docker Registry Repository Tags {repository_name}',
@@ -44,7 +47,7 @@ def repository(repository_name):
 @app.route('/manifest/<repository_name>/<tag>', methods=['GET'])
 def repository_tag_manifest(repository_name, tag):
     if flask.request.method == 'GET':
-        registry = DockerRegistryApi('http://10.0.0.101')
+        registry = DockerRegistryApi(REGISTRY_SERVER)
         manifest = registry.get_pretty_json(registry.get_repository_manifest(repository_name, tag))
         return render_template(
             'repository-tag-manifest-info.html',