diff --git a/recipes/base/common.sh b/recipes/base/common.sh
new file mode 100644
index 0000000..1b9ebb7
--- /dev/null
+++ b/recipes/base/common.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+function check_db_maria_exists() {
+    db-maria list | grep -q "$1"
+}
+
+function check_db_postgres_exists() {
+    db-psql list | grep -q "$1"
+}
+
+function extract_domain_from_fqdn() {
+    fqdn=$1
+    part1=$(builtin echo "$fqdn" | rev | cut -d'.' -f1 | rev)
+    part2=$(builtin echo "${fqdn%."$part1"}" | rev | cut -d'.' -f1 | rev)
+    builtin echo "$part2.$part1"
+}
+
+function extract_subdomain_from_fqdn() {
+    fqdn=$1
+    domain=$(extract_domain_from_fqdn "$fqdn")
+    builtin echo "${fqdn%."$domain"}"
+}
diff --git a/recipes/cagettepei/crud.sh b/recipes/cagettepei/crud.sh
index c6cb6d7..28e8de4 100755
--- a/recipes/cagettepei/crud.sh
+++ b/recipes/cagettepei/crud.sh
@@ -1,9 +1,5 @@
 #!/bin/bash
 
-function check_database_exists() {
-    db-maria list | grep -q "$longname"
-}
-
 function check_port_used() {
     # shellcheck disable=SC2034
     usedport=$(lxc exec "$container" -- bash -c "grep Listen /etc/apache2/sites-enabled/$longname.conf | cut -d' ' -f2")
@@ -21,7 +17,7 @@ function check_config_defined() {
 
 function _read() {
     disable_trace
-    check_database_exists
+    check_db_maria_exists "$longname"
     check_container "$container"
     check_port_used
     check_config_defined
@@ -139,11 +135,12 @@ function usage() {
 
 # init_strict
 
+source "$(dirname "$0")/../base/common.sh"
 COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -175,6 +172,12 @@ while true; do
         longname="cagettepei-$shortname"
         shift 2
         ;;
+    --domain)
+        shift 2
+        ;;
+    --subdomain)
+        shift 2
+        ;;
     -c)
         [[ "$action" == "unset" ]] || usage
         action="_create"
@@ -200,7 +203,7 @@ while true; do
         break
         ;;
     *)
-        echo "Internal error!"
+        echo "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
diff --git a/recipes/discourse/crud.sh b/recipes/discourse/crud.sh
index 38ff692..762714b 100755
--- a/recipes/discourse/crud.sh
+++ b/recipes/discourse/crud.sh
@@ -1,12 +1,26 @@
 #!/bin/bash
 
+function check_service_running() {
+    lxc exec "$container" -- bash -c "docker ps --format {{.Names}} | grep $1"
+}
+
 function _read() {
+    disable_trace
+    check_db_postgres_exists "$longname"
+    check_container "$container"
+    check_service_running "$shortname"
+    enable_trace
     return 0
 }
 
 function _create() {
-    echo "creating discourse-docker instance for <$shortname> ... "
-    echo "initialize discourse-docker $shortname $longname ... OK"
+    echo "creating discourse instance for <$shortname> ... "
+    echo "initialize discourse $shortname $longname ... OK"
+
+    mkdir -p "$MIAOU_CONFIGDIR/apps/discourse"
+    APP_DOMAIN=$domain APP_SUBDOMAIN=$subdomain APP_FQDN=$fqdn APP_PORT=$port APP_NAME=$shortname tera -e --env-key env -t "$MIAOU_BASEDIR/templates/apps/discourse/forum.yml.j2" -o "$MIAOU_CONFIGDIR/apps/discourse/$longname.yml" "$MIAOU_CONFIGDIR/miaou.expanded.yaml"
+    echo "creating templates ... OK"
+
 }
 
 function _update() {
@@ -25,12 +39,12 @@ function usage() {
 ### MAIN
 
 # init_strict
-
+source "$(dirname "$0")/../base/common.sh"
 COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,data: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain:,data: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -41,7 +55,8 @@ container="unset"
 shortname="unset"
 longname="unset"
 fqdn="unset"
-data="unset"
+domain="unset"
+subdomain="unset"
 
 # extract options and their arguments into variables.
 while true; do
@@ -60,11 +75,19 @@ while true; do
         ;;
     --name)
         shortname=$2
-        longname="cagettepei-$shortname"
+        longname="discourse-$shortname"
+        shift 2
+        ;;
+    --domain)
+        domain=$2
+        shift 2
+        ;;
+    --subdomain)
+        subdomain=$2
         shift 2
         ;;
     --data)
-        data=$2
+        # don't care
         shift 2
         ;;
     -c)
@@ -92,7 +115,7 @@ while true; do
         break
         ;;
     *)
-        echo "Internal error!"
+        echoerr "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
@@ -103,7 +126,8 @@ done
     "$port" != unset &&
     "$container" != unset &&
     "$fqdn" != unset &&
-    "$data" != unset &&
+    "$domain" != unset &&
+    "$subdomain" != unset &&
     "$shortname" != unset ]] || usage
 
 . "$MIAOU_BASEDIR/lib/init.sh"
diff --git a/recipes/dolibarr/crud.sh b/recipes/dolibarr/crud.sh
index edd8306..7eb374d 100755
--- a/recipes/dolibarr/crud.sh
+++ b/recipes/dolibarr/crud.sh
@@ -108,7 +108,7 @@ COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -138,6 +138,12 @@ while true; do
         longname="dolibarr-$shortname"
         shift 2
         ;;
+    --domain)
+        shift 2
+        ;;
+    --subdomain)
+        shift 2
+        ;;
     -c)
         [[ "$action" == "unset" ]] || usage
         action="_create"
@@ -163,7 +169,7 @@ while true; do
         break
         ;;
     *)
-        echo "Internal error!"
+        echo "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
diff --git a/recipes/odoo12/crud.sh b/recipes/odoo12/crud.sh
index c03649c..02fc912 100755
--- a/recipes/odoo12/crud.sh
+++ b/recipes/odoo12/crud.sh
@@ -111,7 +111,7 @@ COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,data: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain:,data: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -144,6 +144,12 @@ while true; do
         longname="odoo12-$shortname"
         shift 2
         ;;
+    --domain)
+        shift 2
+        ;;
+    --subdomain)
+        shift 2
+        ;;
     --data)
         data=$2
         shift 2
@@ -173,7 +179,7 @@ while true; do
         break
         ;;
     *)
-        echoerr "Internal error!"
+        echoerr "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
diff --git a/recipes/odoo15/crud.sh b/recipes/odoo15/crud.sh
index 82a1a8a..e49f88a 100755
--- a/recipes/odoo15/crud.sh
+++ b/recipes/odoo15/crud.sh
@@ -127,7 +127,7 @@ COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,data: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain:,data: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -164,6 +164,12 @@ while true; do
         data=$2
         shift 2
         ;;
+    --domain)
+        shift 2
+        ;;
+    --subdomain)
+        shift 2
+        ;;
     -c)
         [[ "$action" == "unset" ]] || usage
         action="_create"
@@ -189,7 +195,7 @@ while true; do
         break
         ;;
     *)
-        echoerr "Internal error!"
+        echoerr "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
diff --git a/recipes/stub/crud.sh b/recipes/stub/crud.sh
index 8e22a43..238e796 100755
--- a/recipes/stub/crud.sh
+++ b/recipes/stub/crud.sh
@@ -30,7 +30,7 @@ COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -87,8 +87,8 @@ while true; do
         break
         ;;
     *)
-        echo "Internal error!"
-        exit 1
+        builtin echo "useless option $1"
+        shift 2
         ;;
     esac
 done
diff --git a/recipes/wordpress/crud.sh b/recipes/wordpress/crud.sh
index d2e91af..fe4fd99 100755
--- a/recipes/wordpress/crud.sh
+++ b/recipes/wordpress/crud.sh
@@ -132,7 +132,7 @@ COMMAND_NAME=$(basename "$0")
 
 # read the options
 
-TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn: -- "$@")
+TEMP=$(getopt -n "$COMMAND_NAME" -o crud --long port:,container:,name:,fqdn:,domain:,subdomain: -- "$@")
 # shellcheck disable=SC2181
 [[ "$?" -eq 0 ]] || usage
 eval set -- "$TEMP"
@@ -162,6 +162,12 @@ while true; do
         longname="wp-$shortname"
         shift 2
         ;;
+    --domain)
+        shift 2
+        ;;
+    --subdomain)
+        shift 2
+        ;;
     -c)
         [[ "$action" == "unset" ]] || usage
         action="_create"
@@ -187,7 +193,7 @@ while true; do
         break
         ;;
     *)
-        echo "Internal error!"
+        echoerr "Internal error: unrecognized option: <$1>"
         exit 1
         ;;
     esac
diff --git a/scripts/miaou b/scripts/miaou
index d209651..e98f12c 100755
--- a/scripts/miaou
+++ b/scripts/miaou
@@ -497,10 +497,11 @@ function build_services() {
         recipe="$MIAOU_BASEDIR/recipes/$app/crud.sh"
         if [[ -f "$recipe" ]]; then
             echo "read [$app:$name] provided by container <$container>"
-            command="env MIAOU_BASEDIR=$MIAOU_BASEDIR MIAOU_CONFIGDIR=$MIAOU_CONFIGDIR $recipe --port $port --container $container --name $name --fqdn $fqdn"
+            command="env MIAOU_BASEDIR=$MIAOU_BASEDIR MIAOU_CONFIGDIR=$MIAOU_CONFIGDIR $recipe --port $port --container $container --name $name --fqdn $fqdn --domain $domain --subdomain $subdomain"
             [[ "$data" != "null" ]] && command+=" --data \"$data\""
             if ! eval "$command -r" >/dev/null; then
                 echoinfo "CREATE RECIPE"
+                # echo "$command -c"
                 eval "$command -c"
                 echoinfo "CREATE RECIPE: OK"
             fi
diff --git a/templates/apps/discourse/forum.yml.j2 b/templates/apps/discourse/forum.yml.j2
new file mode 100644
index 0000000..6ffe632
--- /dev/null
+++ b/templates/apps/discourse/forum.yml.j2
@@ -0,0 +1,77 @@
+# TODO: change SOME_SECRET in this template
+
+templates:
+  - "templates/web.template.yml"
+  - "templates/web.ratelimited.template.yml"
+
+expose:
+  - "{{ env.APP_PORT }}:80"
+
+params:
+  ## Which Git revision should this container use? (default: tests-passed)
+  #version: tests-passed
+  version: latest-release
+
+env:
+  DISCOURSE_HOSTNAME: '{{ env.APP_FQDN }}'
+
+  LC_ALL: en_US.UTF-8
+  LANG: en_US.UTF-8
+  LANGUAGE: en_US.UTF-8
+  # DISCOURSE_DEFAULT_LOCALE: en
+
+  ## Uncomment if you want the container to be started with the same
+  ## hostname (-h option) as specified above (default "$hostname-$config")
+  DOCKER_USE_HOSTNAME: true
+
+  ## TODO: List of comma delimited emails that will be made admin and developer
+  ## on initial signup example 'user1@example.com,user2@example.com'
+  DISCOURSE_DEVELOPER_EMAILS: 'pvincent@artcode.re'
+
+  ## TODO: The SMTP mail server used to validate new accounts and send notifications
+  # SMTP ADDRESS, username, and password are required
+  # WARNING the char '#' in SMTP password can cause problems!
+  DISCOURSE_SMTP_ADDRESS: mail1.zourit.net
+  DISCOURSE_SMTP_PORT: 587
+  DISCOURSE_SMTP_USER_NAME: postmaster@artcode.re
+  DISCOURSE_SMTP_PASSWORD: bHv5mTYyh3aJJKw
+  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)
+  #DISCOURSE_SMTP_DOMAIN: discourse.example.com    # (required by some providers)
+  #DISCOURSE_NOTIFICATION_EMAIL: noreply@discourse.example.com    # (address to send notifications from)
+
+
+  ## TODO: configure connectivity to the databases
+  DISCOURSE_DB_NAME: libre.re
+  DISCOURSE_DB_USERNAME: libre.re
+  DISCOURSE_DB_PASSWORD: libre.re
+  DISCOURSE_DB_HOST: ct1.lxd
+
+  DISCOURSE_REDIS_HOST: ct1.lxd
+
+volumes:
+  - volume:
+      host: /var/discourse/shared/web-only
+      guest: /shared
+  - volume:
+      host: /var/discourse/shared/web-only/log/var-log
+      guest: /var/log
+
+## Plugins go here
+## see https://meta.discourse.org/t/19157 for details
+hooks:
+  after_code:
+    - exec:
+        cd: $home/plugins
+        cmd:
+          - git clone https://github.com/discourse/docker_manager.git
+          {%- if services[env.APP_DOMAIN][env.APP_SUBDOMAIN]['data']['discourse']['plugins'] %}
+            {%- for plugin in services[env.APP_DOMAIN][env.APP_SUBDOMAIN]['data']['discourse']['plugins'] %}
+          - git clone {{ plugin }}
+            {%- endfor %}
+          {%- endif %}
+
+## Remember, this is YAML syntax - you can only have one block with a name
+run:
+  - exec: echo "Beginning of custom commands"
+  - exec: echo "End of custom commands"
+  - exec: awk -F\# '{print $1;}' ~/.ssh/authorized_keys | awk 'BEGIN { print "Authorized SSH keys for this container:"; } NF>=2 {print $NF;}'