Remove python dep

Makefile

@@ -19,4 +19,4 @@ link-macos:
 	docker run -v /run/host-services/ssh-auth.sock:/run/host-services/ssh-auth.sock -e SSH_AUTH_SOCK="/run/host-services/ssh-auth.sock" --rm -it fractalnetworks/gateway-cli:latest $(GATEWAY) $(FQDN) $(EXPOSE)
 
 link-ci:
-	./ci/create-link-ci.sh $(GATEWAY) $(FQDN) $(EXPOSE)
+	./ci/create-link-ci.sh gateway-sshd app.example.com nginx:80

ci/create-link-ci.sh

@@ -9,10 +9,11 @@ docker network create gateway || true   # create docker network if not exists
 docker compose up -d --build
 eval $(ssh-agent -s)
 ssh-add ./gateway-sim-key
-# 
+# generate a docker compose to test the generated link
 cat test-link.template.yaml > test-link.yaml
 docker run --network gateway -e SSH_AGENT_PID=$SSH_AGENT_PID -e SSH_AUTH_SOCK=$SSH_AUTH_SOCK -v $SSH_AUTH_SOCK:$SSH_AUTH_SOCK --rm fractalnetworks/gateway-cli:latest $1 $2 $3 >> test-link.yaml
 cat network.yaml >> test-link.yaml
+# set the gateway endpoint to the gateway link container
 sed -i 's/^\(\s*GATEWAY_ENDPOINT:\).*/\1 app-example-com:18521/' test-link.yaml
 docker compose -f test-link.yaml up -d
 docker compose -f test-link.yaml exec link ping 10.0.0.1 -c 2

ci/test-link.template.yaml

@@ -1,8 +1,7 @@
 version: '3.9'
 
-# need this
 networks:
   gateway:
       external: true
 
-services:  
+services:

src/create-link/entrypoint.sh

@@ -3,6 +3,21 @@
 
 set -e
 
+function fqdn_to_container_name() {
+    local fqdn="$1"
+
+    # Check if the FQDN is non-empty
+    if [[ -z "$fqdn" ]]; then
+        echo "Error: No FQDN provided."
+        return 1
+    fi
+
+    # Replace all dots with dashes
+    CONTAINER_NAME="${fqdn//./-}"
+
+    echo "$CONTAINER_NAME"
+}
+
 SSH_HOST=$1
 SSH_PORT=22
 # split port from SSH_HOST if SSH_HOST contains :
@@ -14,13 +29,15 @@ fi
 
 export LINK_DOMAIN=$2
 export EXPOSE=$3
-export WG_PRIVKEY=$(wg genkey)
+WG_PRIVKEY=$(wg genkey)
+export WG_PRIVKEY
 # Nginx uses Docker DNS resolver for dynamic mapping of LINK_DOMAIN to link container hostnames, see nginx/*.conf
 # This is the magic.
 # NOTE: All traffic for `*.subdomain.domain.tld`` will be routed to the container named `subdomain-domain-tld``
 # Also supports `subdomain.domain.tld` as well as apex `domain.tld`
 # *.domain.tld should resolve to the Gateway's public IPv4 address
-export CONTAINER_NAME=$(echo $LINK_DOMAIN|python3 -c 'fqdn=input();print("-".join(fqdn.split(".")[-4:]))')
+CONTAINER_NAME=$(fqdn_to_container_name "$LINK_DOMAIN")
+export CONTAINER_NAME
 
 
 LINK_CLIENT_WG_PUBKEY=$(echo $WG_PRIVKEY|wg pubkey)