Chainlink/Adapters Helm Charts

Note that if you want to customize your Chainlink node and adapters, you will have to update the Helm charts configuration in the Terraform code. For example if you want to set your explorer access key, you will have to update the chainlink Helm chart configuration in the helm_release resource: helm_release.chainlink.

resource "helm_release" "chainlink" {
  chart   = "${path.module}/../chainlink-helm/chainlink"
  name    = "chainlink"
  version = "1.0.0"

  recreate_pods = true
  force_update  = true

  set {
    name  = "config.is_explorer_enabled"
    value = true
  }

  set {
    name  = "config.explorer_access_key"
    value = "YOUR_EXPLORER_ACCESS_KEY" # You can use SOPS to encrypt your secrets
  }

  set {
    name  = "config.explorer_secret"
    value = "YOUR_EXPLORER_SECRET" # You can use SOPS to encrypt your secrets
  }
  
  ...

  depends_on = [
    kubernetes_secret.api_secrets
  ]
}

Chainlink Helm Chart

Required Values

The values are mostly the Chainlink environment variables described in their documentation.

Name	Chainlink Environment Variable	Type	Default Value	Required
`config.is_explorer_enabled`	/	boolean	false	true
`config.explorer_access_key`	EXPLORER_ACCESS_KEY	string	""	false
`config.explorer_secret`	EXPLORER_URL	string	""	false
`config.root`	ROOT	string	"/chainlink"	false
`config.log_level`	LOG_LEVEL	string	"debug"	false
`config.eth_chain_id`	ETH_CHAIN_ID	string	"4"	true
`config.chainlink_tls_port`	CHAINLINK_TLS_PORT	string	"0"	false
`config.secure_cookies`	SECURE_COOKIES	string	"false"	false
`config.allow_origins`	ALLOW_ORIGINS	string	"*"	false
`config.eth_url`	ETH_URL	string	""	true
`config.database_locking_mode`	DATABASE_LOCKING_MODE	string	"lease"	false
`config.p2p_bootstrap_peers`	P2P_BOOTSTRAP_PEERS	string	""	false
`config.feature_offchain_reporting`	FEATURE_OFFCHAIN_REPORTING	string	"true"	false
`config.chainlink_dev`	CHAINLINK_DEV	string	"true"	true
`config.p2p`	see below	object	see below	true

If you don't have an explorer access key, you must set is_explorer_enabled to false. Otherwise, if you set it to true, you need to set explorer_access_key and explorer_secret.

The p2p key is an object with the following default value:

  p2p:
    enabled: true
    port: 10000
    elastic_ip_alloc_id: ''
    public_ip: ''

p2p.enabled isn't a Chainlink environment variable, but it allows you to choose whether you need the following P2P environment variables enabled or not. If p2p.enabled is true the following environment variables will be set:

P2P_LISTEN_PORT (p2p.port)
P2P_ANNOUNCE_PORT (p2p.port)
P2P_ANNOUNCE_IP (p2p.public_ip)

p2p.elastic_ip_alloc_id will always be used for the AWS Load Balancer EIP allocations (see Chainlink Service).