setup-opds.sh: add reconfigure option to update existing OPDS setup, improve Caddyfile generation for auto and manual SSL

hub/setup-opds.sh

@@ -26,9 +26,7 @@ if ! command -v docker >/dev/null 2>&1; then
         else
             curl -fsSL https://get.docker.com | bash
         fi
-        if ! command -v docker >/dev/null 2>&1; then
-            die "Docker installation failed."
-        fi
+        command -v docker >/dev/null 2>&1 || die "Docker installation failed."
         info "Docker installed."
     else
         die "Docker is required. Aborting."
@@ -37,6 +35,32 @@ fi
 
 header "TinyBoard OPDS Setup"
 echo ""
+
+EXISTING_SERVER=""
+if docker ps -a --format '{{.Names}}' 2>/dev/null | grep -qE '^(dir2opds|stump)$'; then
+    EXISTING_SERVER=$(docker ps -a --format '{{.Names}}' 2>/dev/null | grep -E '^(dir2opds|stump)$' | head -1)
+fi
+
+if [ -n "$EXISTING_SERVER" ]; then
+    echo "An existing OPDS server was found: ${EXISTING_SERVER}"
+    echo ""
+    echo "  1) Reconfigure — update books path, domain, SSL, or auth"
+    echo "  2) Fresh install — remove existing and start over"
+    echo "  q) Quit"
+    echo ""
+    read -rp "Choose [1/2/q]: " RECONF_CHOICE
+    case "$RECONF_CHOICE" in
+        1) info "Reconfiguring existing setup..." ;;
+        2) 
+            docker rm -f dir2opds stump caddy-opds 2>/dev/null || true
+            info "Existing containers removed."
+            ;;
+        q|Q) exit 0 ;;
+        *) die "Invalid choice." ;;
+    esac
+    echo ""
+fi
+
 echo "Choose an OPDS server:"
 echo "  1) dir2opds — lightweight, no database, serves files directly from a folder"
 echo "  2) Stump    — full-featured book/comic server with web UI and OPDS support"
@@ -69,8 +93,8 @@ read -rp "Hub user [armbian]: " HUB_USER
 HUB_USER="${HUB_USER:-armbian}"
 HUB_HOME="/home/$HUB_USER"
 
-read -rp "Path to books directory [${HUB_HOME}/mnt/grace/st/data/books]: " BOOKS_PATH
-BOOKS_PATH="${BOOKS_PATH:-${HUB_HOME}/mnt/grace/st/data/books}"
+read -rp "Path to books directory [${HUB_HOME}/mnt/grace/st/data/books/justin]: " BOOKS_PATH
+BOOKS_PATH="${BOOKS_PATH:-${HUB_HOME}/mnt/grace/st/data/books/justin}"
 [ -d "$BOOKS_PATH" ] || die "Books directory not found: $BOOKS_PATH"
 
 echo ""
@@ -153,12 +177,12 @@ info "$OPDS_SERVER started on internal network opds-net."
 
 header "Writing Caddyfile"
 CADDY_DIR="${OPDS_DIR}/caddy"
-mkdir -p "$CADDY_DIR"
+mkdir -p "${CADDY_DIR}/data" "${CADDY_DIR}/config"
 
-if [ "$AUTO_HTTPS" = true ]; then
-    TLS_BLOCK=""
-else
+if [ "$AUTO_HTTPS" = false ]; then
     TLS_BLOCK="    tls ${CERT_PATH} ${KEY_PATH}"
+else
+    TLS_BLOCK=""
 fi
 
 if [[ "${USE_AUTH,,}" == "y" ]]; then
@@ -172,25 +196,38 @@ else
     AUTH_BLOCK=""
 fi
 
+if [ "$AUTO_HTTPS" = false ]; then
     cat > "${CADDY_DIR}/Caddyfile" << EOF
-$([ "$AUTO_HTTPS" = false ] && echo '{
+{
     auto_https off
 }
 
 :80 {
     redir https://{host}{uri} permanent
 }
-')
+
 ${OPDS_DOMAIN} {
     encode gzip
-${TLS_BLOCK:+$TLS_BLOCK
-}${AUTH_BLOCK:+$AUTH_BLOCK
-}    reverse_proxy http://${OPDS_SERVER}:${OPDS_INTERNAL_PORT} {
+${TLS_BLOCK}
+${AUTH_BLOCK}
+    reverse_proxy http://${OPDS_SERVER}:${OPDS_INTERNAL_PORT} {
         header_up Host {host}
         header_up X-Real-IP {remote}
     }
 }
 EOF
+else
+    cat > "${CADDY_DIR}/Caddyfile" << EOF
+${OPDS_DOMAIN} {
+    encode gzip
+${AUTH_BLOCK}
+    reverse_proxy http://${OPDS_SERVER}:${OPDS_INTERNAL_PORT} {
+        header_up Host {host}
+        header_up X-Real-IP {remote}
+    }
+}
+EOF
+fi
 
 info "Caddyfile written to ${CADDY_DIR}/Caddyfile"
 
@@ -217,6 +254,8 @@ else
         -p 80:80 \
         -p 443:443 \
         -v "${CADDY_DIR}/Caddyfile:/etc/caddy/Caddyfile:ro" \
+        -v "${CADDY_DIR}/data:/data" \
+        -v "${CADDY_DIR}/config:/config" \
         -v "${CERT_DIR}:/certs:ro" \
         caddy:alpine
 fi