Merge pull request #1 from shenxn/master

Update from shenxn/protonmail-bridge-docker

build/entrypoint.sh

@@ -13,6 +13,12 @@ if [[ $1 == init ]]; then
     # Initialize pass
     gpg --generate-key --batch /protonmail/gpgparams
     pass init pass-key
+    
+    # Kill the other instance as only one can be running at a time.
+    # This allows users to run entrypoint init inside a running conainter
+    # which is useful in a k8s environment.
+    # || true to make sure this would not fail in case there is no running instance.
+    pkill protonmail-bridge || true
 
     # Login
     /protonmail/proton-bridge --cli $@