Add Docker uninstall script

README.md

@@ -30,6 +30,11 @@ Database migrations run automatically on startup and during updates.
 docker compose pull && docker compose up -d
 ```
 
+**Full uninstall:**
+```bash
+curl -fsSL https://synapsis.social/uninstall.sh | bash
+```
+
 For detailed Docker setup, see [docker/README.md](docker/README.md).
 
 ---

docker/README.md

@@ -56,6 +56,16 @@ cd /opt/synapsis
 docker compose pull && docker compose up -d
 ```
 
+## 🗑️ Full Uninstall
+
+To remove Synapsis completely from a host and start over:
+
+```bash
+curl -fsSL https://synapsis.social/uninstall.sh | bash
+```
+
+The uninstaller destroys the Synapsis containers, volumes, network, cached Synapsis images, and `/opt/synapsis`. It requires typing `DELETE` unless you set `FORCE=1`.
+
 ---
 
 ## 🛠️ Common Commands

docker/uninstall.sh

@@ -0,0 +1,113 @@
+#!/bin/sh
+
+set -eu
+
+INSTALL_DIR="${1:-${INSTALL_DIR:-/opt/synapsis}}"
+PROJECT_NAME="${PROJECT_NAME:-synapsis}"
+IMAGE_REPO="${IMAGE_REPO:-ghcr.io/gnosyslabs/synapsis}"
+
+require_command() {
+    if ! command -v "$1" >/dev/null 2>&1; then
+        echo "❌ Required command not found: $1" >&2
+        exit 1
+    fi
+}
+
+confirm_uninstall() {
+    if [ "${FORCE:-0}" = "1" ] || [ "${YES:-0}" = "1" ]; then
+        return
+    fi
+
+    echo "========================================"
+    echo "  Synapsis Docker Uninstaller"
+    echo "========================================"
+    echo "  Install dir: ${INSTALL_DIR}"
+    echo "  Project name: ${PROJECT_NAME}"
+    echo ""
+    echo "This will permanently remove:"
+    echo "  - Synapsis containers"
+    echo "  - Synapsis Docker volumes and network"
+    echo "  - Synapsis images pulled from GHCR/local cache"
+    echo "  - ${INSTALL_DIR}"
+    echo ""
+    printf "Type DELETE to continue: "
+    read -r confirmation
+
+    if [ "$confirmation" != "DELETE" ]; then
+        echo "Aborted."
+        exit 1
+    fi
+}
+
+cleanup_with_compose() {
+    if [ -f "${INSTALL_DIR}/docker-compose.yml" ]; then
+        echo "🧹 Stopping Synapsis compose stack"
+        if [ -f "${INSTALL_DIR}/.env" ]; then
+            docker compose --env-file "${INSTALL_DIR}/.env" -f "${INSTALL_DIR}/docker-compose.yml" down --volumes --remove-orphans || true
+        else
+            docker compose -f "${INSTALL_DIR}/docker-compose.yml" down --volumes --remove-orphans || true
+        fi
+    fi
+}
+
+cleanup_named_resources() {
+    for container in synapsis-caddy synapsis-app synapsis-db; do
+        if docker ps -aq --filter "name=^${container}$" | grep -q .; then
+            echo "🗑️  Removing container ${container}"
+            docker rm -f "${container}" >/dev/null 2>&1 || true
+        fi
+    done
+
+    for volume in \
+        synapsis_postgres_data \
+        synapsis_uploads_data \
+        synapsis_port_data \
+        synapsis_caddy_data \
+        synapsis_caddy_config
+    do
+        if docker volume inspect "${volume}" >/dev/null 2>&1; then
+            echo "🗑️  Removing volume ${volume}"
+            docker volume rm -f "${volume}" >/dev/null 2>&1 || true
+        fi
+    done
+
+    if docker network inspect synapsis_synapsis-network >/dev/null 2>&1; then
+        echo "🗑️  Removing network synapsis_synapsis-network"
+        docker network rm synapsis_synapsis-network >/dev/null 2>&1 || true
+    fi
+}
+
+cleanup_images() {
+    docker images --format '{{.Repository}}:{{.Tag}}' | while IFS= read -r image; do
+        case "$image" in
+            "${IMAGE_REPO}:"*|synapsis:*)
+                echo "🗑️  Removing image ${image}"
+                docker rmi -f "$image" >/dev/null 2>&1 || true
+                ;;
+        esac
+    done
+}
+
+remove_install_dir() {
+    if [ -d "${INSTALL_DIR}" ]; then
+        echo "🗑️  Removing ${INSTALL_DIR}"
+        rm -rf "${INSTALL_DIR}"
+    fi
+}
+
+require_command docker
+require_command rm
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo "❌ Run this uninstaller as root or with sudo." >&2
+    exit 1
+fi
+
+confirm_uninstall
+cleanup_with_compose
+cleanup_named_resources
+cleanup_images
+remove_install_dir
+
+echo ""
+echo "✅ Synapsis has been removed from this host."