Add langflow (ct)

ct/langflow.sh

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+#!/usr/bin/env bash
+_cs_boot="${COMMUNITY_SCRIPTS_CORE_DIR:-$(dirname "${BASH_SOURCE[0]}")/../../core}/core/build.func"
+source "$_cs_boot" 2>/dev/null || source <(curl -fsSL "${COMMUNITY_SCRIPTS_CORE_URL:-https://raw.githubusercontent.com/community-scripts/core/main}/core/build.func")
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/langflow-ai/langflow
+
+APP="Langflow"
+var_tags="${var_tags:-ai;llm;agents}"
+var_cpu="${var_cpu:-2}"
+var_ram="${var_ram:-2048}"
+var_disk="${var_disk:-8}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+#var_arm64="${var_arm64:-no}" # unset = ask the user; set yes/no only when verified
+var_unprivileged="${var_unprivileged:-1}"
+
+export var_admin_user="${var_admin_user:-}"
+export var_admin_pass="${var_admin_pass:-}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /opt/langflow ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+
+  if check_for_gh_release "langflow" "langflow-ai/langflow"; then
+    msg_info "Stopping Langflow"
+    systemctl stop langflow
+    msg_ok "Stopped Langflow"
+
+    PYTHON_VERSION="3.14" USE_UVX="YES" setup_uv
+
+    msg_info "Updating Langflow"
+    $STD uv venv --clear --python 3.14 /opt/langflow/.venv
+    $STD uv pip install --python /opt/langflow/.venv/bin/python "langflow==${CHECK_UPDATE_RELEASE#v}"
+    cat <<EOF >~/.langflow
+${CHECK_UPDATE_RELEASE#v}
+EOF
+    msg_ok "Updated Langflow"
+
+    msg_info "Starting Langflow"
+    systemctl start langflow
+    msg_ok "Started Langflow"
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW}Access it using the following URL:${CL}"
+echo -e "${GATEWAY}${BGN}http://${IP}:7860${CL}"
+echo -e "${INFO}${YW}Login: LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD in /opt/langflow_data/.env (inside the container)${CL}"

install/langflow-install.sh

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+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: MickLesk (CanbiZ)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/langflow-ai/langflow
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+NODE_VERSION="24" setup_nodejs
+PYTHON_VERSION="3.14" USE_UVX="YES" setup_uv
+
+LANGFLOW_VERSION="${var_appversion:-$(get_latest_github_release "langflow-ai/langflow")}"
+msg_info "Installing Langflow ${LANGFLOW_VERSION#v}"
+$STD uv venv --python 3.14 /opt/langflow/.venv
+$STD uv pip install --python /opt/langflow/.venv/bin/python "langflow==${LANGFLOW_VERSION#v}"
+cat <<EOF >~/.langflow
+${LANGFLOW_VERSION#v}
+EOF
+msg_ok "Installed Langflow ${LANGFLOW_VERSION#v}"
+
+msg_info "Configuring Langflow"
+mkdir -p /opt/langflow_data/logs
+cat <<EOF >/opt/langflow_data/.env
+LANGFLOW_HOST=0.0.0.0
+LANGFLOW_PORT=7860
+LANGFLOW_CONFIG_DIR=/opt/langflow_data
+LANGFLOW_DATABASE_URL=sqlite:////opt/langflow_data/langflow.db
+LANGFLOW_KNOWLEDGE_BASES_DIR=/opt/langflow_data/knowledge_bases
+LANGFLOW_LOG_FILE=/opt/langflow_data/logs/langflow.log
+LANGFLOW_SECRET_KEY=$(/opt/langflow/.venv/bin/python -c "from secrets import token_urlsafe; print(token_urlsafe(32))")
+LANGFLOW_AUTO_LOGIN=False
+LANGFLOW_SUPERUSER='${var_admin_user:-langflow}'
+LANGFLOW_SUPERUSER_PASSWORD='${var_admin_pass:-$(random_password)}'
+EOF
+chmod 600 /opt/langflow_data/.env
+msg_ok "Configured Langflow"
+
+msg_info "Creating Service"
+cat <<EOF >/etc/systemd/system/langflow.service
+[Unit]
+Description=Langflow
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+WorkingDirectory=/opt/langflow_data
+EnvironmentFile=/opt/langflow_data/.env
+ExecStart=/opt/langflow/.venv/bin/langflow run
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl enable -q --now langflow
+msg_ok "Created Service"
+
+motd_ssh
+customize
+cleanup_lxc