diff --git a/.env.example b/.env.example
index b97fec6..a51f38f 100644
--- a/.env.example
+++ b/.env.example
@@ -1,3 +1,5 @@
+# Build ARG GPG_PP. May still need to be empty to avoid breakage.
+BUILD_GPG_PP=
 
 # Mandatory: Server address of the SMTP server to use.
 SMTP_SERVER=127.0.0.1
diff --git a/Dockerfile b/Dockerfile
index 78189af..d64fd84 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,11 +12,13 @@ RUN apk update && \
     sed -i -e 's/inet_interfaces = localhost/inet_interfaces = all/g' /etc/postfix/main.cf
 
 # Gpg for pass/pmb
+ARG GPG_PP=""
+RUN echo "@@@@@@@@@@@@@@@@@@@@   Passphrase:"${GPG_PP}
 RUN mkdir /root/.gnupg
 #RUN echo "default-cache-ttl 34560000" >> /root/.gnupg/gpg-agent.conf
 #RUN echo "max-cache-ttl 34560000" >> /root/.gnupg/gpg-agent.conf
 RUN gpg-agent --daemon --batch --disable-scdaemon
-RUN gpg --quick-gen-key --batch --passphrase '' pmbkey
+RUN gpg --quick-gen-key --batch --passphrase "${GPG_PP}" pmbkey
 RUN pass init pmbkey
 
 COPY dotmsmtprc /root/.msmtprc
diff --git a/PMB_README.md b/PMB_README.md
index 409e35d..1d77364 100644
--- a/PMB_README.md
+++ b/PMB_README.md
@@ -15,6 +15,7 @@ Build only seems to require  `#usermod -aG docker username`. Not tested as root/
 By default, `bridge` runs in non-interactive mode on container startup. You must set up the bridge initially:
 
     cp .env.example .env
+    vi .env
     docker-compose build
     docker-compose up -d
     docker-compose exec pmb bash
diff --git a/docker-compose.yml b/docker-compose.yml
index f671320..8a25a1f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,12 +2,16 @@ version: '2'
 services:
   pmb:
     build:
+      args:
+        GPG_PP: $BUILD_GPG_PP
+      #context: pmb-pf if git clone into existing dc dir
       context: .
       dockerfile: Dockerfile
     #image: juanluisbaptiste/postfix:latest
     expose:
       - "25"
     env_file:
+      #- pmb-pf/.env
       - .env
     restart: always
     volumes: