Merge pull request #38 from ethpandaops/skylenet/make-web-server-opti…

…onal

make web server optional

README.md

@@ -1,45 +1,36 @@
 # ethereum-genesis-generator
 
-Create a ethereum consensus/execution layer testnet genesis and expose it via a webserver for testing purposes.
+Create a ethereum consensus/execution layer testnet genesis and optionally expose it via a web server for testing purposes.
 
 ### Examples
 
-Running with the default configuration. Check the [config-example](config-example) directory.
+You can provide your own configuration directory. Have a look at the example in [`config-example`](config-example).
 
 ```sh
-mkdir data
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 ethpandaops/ethereum-genesis-generator:latest all # Create EL+CL genesis
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 ethpandaops/ethereum-genesis-generator:latest cl  # Just CL
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 ethpandaops/ethereum-genesis-generator:latest el  # Just EL
-```
-
-You can overwrite configuration files. To do so, please update the values in the `config-example/values.env` file
-apply it using the docker volume mount:
+# Create the output directory
+mkdir output
 
-```sh
 # Overwriting the config files and generating the EL and CL genesis
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 \
+docker run --rm -it -u $UID -v $PWD/output:/data \
   -v $PWD/config-example:/config \
   ethpandaops/ethereum-genesis-generator:latest all
 
 # Just creating the EL genesis
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 \
+docker run --rm -it -u $UID -v $PWD/output:/data \
   -v $PWD/config-example:/config \
   ethpandaops/ethereum-genesis-generator:latest el
 
 # Just creating the CL genesis
-docker run --rm -it -u $UID -v $PWD/data:/data -p 127.0.0.1:8000:8000 \
+docker run --rm -it -u $UID -v $PWD/output:/data \
   -v $PWD/config-example:/config \
   ethpandaops/ethereum-genesis-generator:latest cl
 ```
-
-After that, access `http://localhost:8000` on your browser to see the genesis files
-
 ### Environment variables
 
-Name | Default | Description
----- |-------- | ----
-SERVER_PORT | 8000 | Web server port
+Name           | Default | Description
+-------------- |-------- | ----
+SERVER_ENABLED | false   | Enable a web server that will serve the generated files
+SERVER_PORT    | 8000    | Web server port
 
 Besides that, you can also use ENV vars in your configuration files. One way of doing this is via the [values.env](config-example/values.env) configuration file. These will be replaced during runtime.
 
@@ -51,4 +42,3 @@ eth2-testnet-genesis | https://github.com/protolambda/eth2-testnet-genesis
 eth2-val-tools | https://github.com/protolambda/eth2-val-tools
 zcli | https://github.com/protolambda/zcli
 el-gen | [apps/el-gen](apps/el-gen)
-

entrypoint.sh

@@ -1,5 +1,6 @@
 #!/bin/bash -e
 source /config/values.env
+SERVER_ENABLED="${SERVER_ENABLED:-false}"
 SERVER_PORT="${SERVER_PORT:-8000}"
 WITHDRAWAL_ADDRESS="${WITHDRAWAL_ADDRESS:-0xf97e180c050e5Ab072211Ad2C213Eb5AEE4DF134}"
 
@@ -99,4 +100,6 @@ case $1 in
 esac
 
 # Start webserver
-cd /data && exec python -m SimpleHTTPServer "$SERVER_PORT"
+if [ "$SERVER_ENABLED" = true ] ; then
+  cd /data && exec python -m SimpleHTTPServer "$SERVER_PORT"
+fi