version: "3.2"
services:
    gateway:
        volumes:
            - "/var/run/docker.sock:/var/run/docker.sock"
        ports:
            - 8080:8080
        image: functions/gateway:0.6.7-armhf
        networks:
            - functions
        environment:
            dnsrr: "true"  # Temporarily use dnsrr in place of VIP while issue persists on PWD
            faas_nats_address: "nats"
            faas_nats_port: 4222
        # Start Add for NATS Streaming
        depends_on:
            - nats
        deploy:
            restart_policy:
                condition: on-failure
                delay: 5s
                max_attempts: 20
                window: 380s
            placement:
                constraints:
                    - 'node.role == manager'
                    - 'node.platform.os == linux'

    nats:
        image: nats-streaming:0.6.0
        ports:
            - 4222:4222
            - 8222:8222
        command: "--store memory --cluster_id faas-cluster"
        networks:
            - functions
        deploy:
            placement:
                constraints:
                    - 'node.platform.os == linux'

    queue-worker:
        image: alexellis2/nats-queue-worker:0.1-armhf
        networks:
            - functions
        deploy:
            restart_policy:
                condition: on-failure
                delay: 5s
                max_attempts: 20
                window: 380s
            placement:
                constraints:
                    - 'node.platform.os == linux'

    prometheus:
        image: alexellis2/prometheus-armhf:1.5.2
        volumes:
            - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
            - ./prometheus/alert.rules:/etc/prometheus/alert.rules

        command: "-config.file=/etc/prometheus/prometheus.yml -storage.local.path=/prometheus -storage.local.memory-chunks=10000 --alertmanager.url=http://alertmanager:9093"
        ports:
            - 9090:9090
        depends_on:
            - gateway
            - alertmanager
        environment:
            no_proxy:   "gateway"
        networks:
            - functions
        deploy:
            placement:
                constraints: [node.role == manager]


    alertmanager:
        image: alexellis2/alertmanager-armhf:0.5.1
        environment:
            no_proxy:   "gateway"
        volumes:
            - ./prometheus/alertmanager.yml:/alertmanager.yml
        command:
            - '-config.file=/alertmanager.yml'
        networks:
            - functions
        ports:
            - 9093:9093
        deploy:
            placement:
                constraints: [node.role == manager]

# sample functions go here, but can be created in the UI too.
    nodeinfo:
        image: functions/nodeinfo:latest-armhf
        labels:
            function: "true"
        depends_on:
            - gateway
        networks:
            - functions
        environment:
            no_proxy:   "gateway"
            https_proxy: $https_proxy


networks:
    functions:
        driver: overlay
        #attachable: true