quiet npm version warning (#331)

app/data/container-build/cerc-builder-js/Dockerfile

@@ -29,6 +29,9 @@ RUN \
         usermod -u ${CERC_HOST_UID} -g ${CERC_HOST_GID} ${USERNAME} && chown ${CERC_HOST_UID}:${CERC_HOST_GID} /home/${USERNAME}; \
     fi
 
+# Prevents npm from printing version warnings
+ENV NPM_CONFIG_UPDATE_NOTIFIER=false
+
 RUN \
     # Configure global npm install location, use group to adapt to UID/GID changes
     if ! cat /etc/group | grep -e "^npm:" > /dev/null 2>&1; then groupadd -r npm; fi \

app/data/container-build/cerc-laconic-console-host/Dockerfile

@@ -12,6 +12,8 @@ ARG CERC_NPM_AUTH_TOKEN
 
 # Add NPM global to PATH.
 ENV PATH=${NPM_GLOBAL}/bin:${PATH}
+# Prevents npm from printing version warnings
+ENV NPM_CONFIG_UPDATE_NOTIFIER=false
 
 RUN \
     # Configure global npm install location, use group to adapt to UID/GID changes

app/data/container-build/cerc-laconic-registry-cli/Dockerfile

@@ -12,6 +12,8 @@ ARG CERC_NPM_AUTH_TOKEN
 
 # Add NPM global to PATH.
 ENV PATH=${NPM_GLOBAL}/bin:${PATH}
+# Prevents npm from printing version warnings
+ENV NPM_CONFIG_UPDATE_NOTIFIER=false
 
 RUN \
     # Configure global npm install location, use group to adapt to UID/GID changes