README.md

@@ -3,7 +3,7 @@
 Visualize the relationship between Docker networks and containers
 as a neat graphviz graph.
 
-This repository fork [MuratovAS/docker-network-graph](https://github.com/MuratovAS/docker-network-graph)
+This repository fork [e-dant/docker-network-graph](https://github.com/e-dant/docker-network-graph)
 Changes:
 - Improved design
 - Added the ability to generate url
@@ -30,18 +30,7 @@ If you want to generate a graph for a remote system you can also easily
 run this script inside a pre-built docker container:
 
 ```bash
-build container
+docker run --rm -v /var/run/docker.sock:/var/run/docker.sock ghcr.io/muratovas/docker-network-graph:latest -u
-
-    docker build . -t code.brothertec.eu/simono41/docker-network-graph:latest
-
-and create a PNG
-
-    docker run --rm -v /var/run/docker.sock:/var/run/docker.sock code.brothertec.eu/simono41/docker-network-graph:latest | dot -Tpng -o out.png
-
-or as SVG
-
-    docker run --rm -v /var/run/docker.sock:/var/run/docker.sock code.brothertec.eu/simono41/docker-network-graph:latest | dot -Tsvg -o out.svg
-
 ```
 
 For more advanced use cases you can append arguments to the `docker run`
@@ -51,7 +40,7 @@ command as if you were running it in a local shell.
 In most cases what you want to run are the following couple commands:
 
 ```bash
-git clone https://code.brothertec.eu/simono41/docker-network-graph.git
+git clone https://github.com/muratovas/docker-network-graph.git
 cd docker-network-graph
 pipenv install
 pipenv run python docker-network-graph.py -o output.svg

docker-network-graph.py

@@ -77,10 +77,11 @@ def get_unique_color() -> str:
         i += 1
     else:
         # Generate random color if we've already used the 12 preset ones
-        c = "#{:06x}".format(random.randint(0, 0xFFFFFF))
+        c = '#'.join([f"{random.randint(0, 255):02x}" for _ in range(3)])
 
     return c
 
+
 def get_networks(
     client: docker.DockerClient, verbose: bool
 ) -> typing.Dict[str, Network]:
@@ -89,7 +90,7 @@ def get_networks(
     for net in sorted(client.networks.list(), key=lambda k: k.name):
         try:
             gateway = net.attrs["IPAM"]["Config"][0]["Subnet"]
-        except (KeyError, IndexError, TypeError):
+        except (KeyError, IndexError):
             # This network doesn't seem to be used, skip it
             continue
 
@@ -233,13 +234,13 @@ def generate_graph(verbose: bool, file: str, url: str):
             comment="Docker Network Graph",
             engine="sfdp",
             format=ext[1:],
-            graph_attr={'splines': 'true', 'rankdir': 'LR'},
+            graph_attr=dict(splines="true"),
         )
     else:
         g = Graph(
             comment="Docker Network Graph",
             engine="sfdp",
-            graph_attr={'splines': 'true', 'rankdir': 'LR'},
+            graph_attr=dict(splines="true"),
         )
 
     for _, network in networks.items():
@@ -285,4 +286,4 @@ if __name__ == "__main__":
     parser.add_argument("-u", "--url", help="generate link for GraphvizOnline", action="store_true")
     args = parser.parse_args()
 
-    generate_graph(args.verbose, args.out, args.url)
+    generate_graph(args.verbose, args.out, args.url)