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homelab-opentofu/modules/20-services-apps/watchtower/main.tf
Yuris Cakranegara cac26957a8 first commit
2025-06-06 12:01:54 +10:00

59 lines
1.9 KiB
HCL

// Watchtower module for automatic Docker container updates
// This module configures a Watchtower container that monitors and updates other containers
locals {
container_name = var.container_name != "" ? var.container_name : "watchtower"
image_tag = var.image_tag != "" ? var.image_tag : "latest"
default_env_vars = {
TZ = var.timezone
WATCHTOWER_CLEANUP = var.cleanup
WATCHTOWER_POLL_INTERVAL = var.poll_interval
WATCHTOWER_INCLUDE_STOPPED = var.include_stopped
WATCHTOWER_REVIVE_STOPPED = var.revive_stopped
WATCHTOWER_ROLLING_RESTART = var.rolling_restart
WATCHTOWER_NOTIFICATION_URL = var.notification_url
WATCHTOWER_NOTIFICATIONS = var.enable_notifications ? "shoutrrr" : ""
}
// Merge default env vars with any additional ones provided
env_vars = merge(local.default_env_vars, var.additional_env_vars)
// Default volumes for Docker socket access
default_volumes = [
{
host_path = "/var/run/docker.sock"
container_path = "/var/run/docker.sock"
read_only = true
}
]
// Merge default volumes with any additional ones provided
volumes = concat(local.default_volumes, var.additional_volumes)
}
// Use the generic docker-service module to deploy Watchtower
module "watchtower" {
source = "../../10-services-generic/docker-service"
container_name = local.container_name
image = "containrrr/watchtower"
tag = local.image_tag
restart_policy = var.restart_policy
network_mode = "bridge"
env_vars = local.env_vars
volumes = local.volumes
labels = var.labels
// Watchtower doesn't typically expose ports but we'll include the option
ports = var.ports
// Add monitoring label if enabled
monitoring = var.monitoring
depends_on = []
}