add example.env and copy that to .env in install script

containers/caddy.inst

@@ -9,6 +9,7 @@ caddy_install () {
     if /bin/cp -r -f $dir/caddy/*  $target; then
         pushd $target || return
         echo CADDY_DIR=$target >> .env
+        cp example.env .env
         source .env
         cp conf/example.conf conf/$CONF
         ./config

containers/caddy/example.env

@@ -0,0 +1,9 @@
+# copy to .env and edit to suit
+COMPOSE_PROJECT_NAME=caddy
+# default NAME is caddy
+NAME=${COMPOSE_PROJECT_NAME}
+IMAGE=ucommandit/caddy-r53
+CREDENTIALS=${DNS_CHALLENGE_CREDENTIALS:-$PWD/credentials.env}
+# will use Caddyfile unless CONF is set
+# this file should be in /conf on your host (e.g. my.conf)
+CONF=$(hostnamectl hostname)

containers/portainer/example.env

@@ -0,0 +1,9 @@
+#default 9000, uncomment and set
+# PORT=9005
+# default 8000, uncomment and set
+# EDGE_PORT=8005
+# default is /opt/portainer/data
+# DATA=/mnt/extra/containers/EDGE_PORT=8005
+# DATA superceeds PORTAINER_DIR and this is set by install script
+
+