fix: download Docker from URL, not apt (works offline/air-gapped)

- DOCKER_DOWNLOAD_URL and WALLARM_IMAGE_URL env vars for custom sources
- Falls back to offline/ dir if present
- Docker installed under /opt/fw/docker/bin/

setup.sh

@@ -48,20 +48,20 @@ echo -e "${GREEN}Python: $($PYTHON_BIN --version)${NC}"
 
 # ── 4. Install Docker under /opt/fw/docker/ ───────────────────────────
 DOCKER_DIR="${WALLARM_DIR}/docker"
+DOCKER_URL="${DOCKER_DOWNLOAD_URL:-https://download.docker.com/linux/static/stable/x86_64/docker-29.2.1.tgz}"
+WALLARM_IMAGE_URL="${WALLARM_IMAGE_URL:-https://git.sechpoint.app/customer-engineering/wallarm/releases/download/v1.0.0/wallarm-node-6.11.0-rc1.tar.gz}"
+
 if ! command -v docker >/dev/null 2>&1; then
-    echo -e "${YELLOW}Installing Docker under ${DOCKER_DIR}...${NC}"
+    echo -e "${YELLOW}Downloading Docker...${NC}"
     mkdir -p "${DOCKER_DIR}/bin" "${DOCKER_DIR}/data"
     
     if [ -f "${OFFLINE_DIR}/docker-29.2.1.tgz" ]; then
         echo -e "${GREEN}  Using offline binary${NC}"
         tar -xzf "${OFFLINE_DIR}/docker-29.2.1.tgz" -C "${DOCKER_DIR}/bin/"
-    elif command -v apt-get >/dev/null 2>&1; then
-        apt-get install -y -qq docker.io 2>/dev/null
-        cp /usr/bin/docker* "${DOCKER_DIR}/bin/" 2>/dev/null || true
-        cp /usr/bin/dockerd* "${DOCKER_DIR}/bin/" 2>/dev/null || true
-    elif command -v yum >/dev/null 2>&1; then
-        yum install -y -q docker 2>/dev/null
-        cp /usr/bin/docker* "${DOCKER_DIR}/bin/" 2>/dev/null || true
+    else
+        curl -fsSL "${DOCKER_URL}" -o /tmp/docker.tgz 2>/dev/null && \
+            tar -xzf /tmp/docker.tgz -C "${DOCKER_DIR}/bin/" && \
+            rm -f /tmp/docker.tgz
     fi
     
     # Start dockerd with custom data root