Create entrypoint.sh

lxc_autoscale/entrypoint.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+# Check if a user-defined configuration file is provided
+if [[ -z "${USER_CONF_PATH}" ]]; then
+  echo "No user-defined configuration file provided. Using default configuration."
+  export CONFIG_PATH='/app/lxc_autoscale.yaml'
+else
+  echo "Using user-defined configuration file at ${USER_CONF_PATH}."
+  export CONFIG_PATH="${USER_CONF_PATH}"
+fi
+
+# Ensure that the config file exists
+if [[ ! -f "${CONFIG_PATH}" ]]; then
+  echo "Error: Configuration file ${CONFIG_PATH} does not exist."
+  exit 1
+fi
+
+# Debug output for the configuration file path
+echo "Using configuration file: ${CONFIG_PATH}"
+
+# Set SSH variables from environment or YAML if not provided
+if [[ -z "${SSH_USER}" ]]; then
+  SSH_USER=$(yq eval '.DEFAULT.ssh_user' "${CONFIG_PATH}")
+  echo "Debug: SSH_USER read from YAML: ${SSH_USER}"
+fi
+
+if [[ -z "${SSH_PASS}" ]]; then
+  SSH_PASS=$(yq eval '.DEFAULT.ssh_password' "${CONFIG_PATH}")
+  echo "Debug: SSH_PASS read from YAML: ${SSH_PASS}"
+fi
+
+if [[ -z "${PROXMOX_HOST}" ]]; then
+  PROXMOX_HOST=$(yq eval '.DEFAULT.proxmox_host' "${CONFIG_PATH}")
+  echo "Debug: PROXMOX_HOST read from YAML: ${PROXMOX_HOST}"
+fi
+
+# Verify SSH variables are set
+if [[ -z "${SSH_USER}" || -z "${SSH_PASS}" || -z "${PROXMOX_HOST}" ]]; then
+  echo "Error: SSH_USER, SSH_PASS, and PROXMOX_HOST must be set via environment variables or in the YAML file."
+  exit 1
+fi
+
+# Create required directories to ensure paths are writable
+mkdir -p /var/log /var/lock /var/lib/lxc_autoscale/backups
+
+# Function to test SSH connection and run a command
+check_ssh_connection() {
+  local ssh_test_command="echo 'SSH connection successful and command executed'"
+
+  # Test SSH connection using sshpass
+  sshpass -p "${SSH_PASS}" ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 "${SSH_USER}@${PROXMOX_HOST}" "${ssh_test_command}" >/dev/null 2>&1
+
+  # Check if the SSH command was successful
+  if [[ $? -ne 0 ]]; then
+    echo "Error: Unable to connect to Proxmox host ${PROXMOX_HOST} via SSH or execute the test command."
+    exit 1
+  else
+    echo "SSH connection to Proxmox host ${PROXMOX_HOST} successful, and test command executed correctly."
+  fi
+}
+
+# Call the SSH connection test function
+check_ssh_connection
+
+# Start the Python application with the correct configuration path
+echo "Starting the autoscaling application..."
+python lxc_autoscale.py --config "${CONFIG_PATH}"