# matrix.hackerspace.pl, a matrix/synapse instance
# This needs a secret provisioned, create with:
#    kubectl -n matrix create secret generic synapse --from-literal=postgres_password=$(pwgen 24 1)

local kube = import "../../kube/kube.libsonnet";
local postgres = import "../../kube/postgres.libsonnet";

{
    local app = self,
    local cfg = app.cfg,
    cfg:: {
        namespace: "matrix",
        image: "matrixdotorg/synapse:v0.99.3.2",
        riotImage: "bubuntux/riot-web:v1.1.0",
        domain: "matrix.hackerspace.pl",
        serverName: "hackerspace.pl",
        storageClassName: "waw-hdd-redundant-1",
    },

    metadata(component):: {
        namespace: cfg.namespace,
        labels: {
            "app.kubernetes.io/name": "matrix",
            "app.kubernetes.io/managed-by": "kubecfg",
            "app.kubernetes.io/component": component,
        },
    },

    namespace: kube.Namespace(cfg.namespace),

    postgres: postgres {
        cfg+: {
            namespace: cfg.namespace,
            appName: "synapse",
            database: "synapse",
            username: "synapse",
            password: { secretKeyRef: { name: "synapse", key: "postgres_password" } },
        },
    },

    dataVolume: kube.PersistentVolumeClaim("synapse-data") {
        metadata+: app.metadata("synapse-data"),
        spec+: {
            storageClassName: cfg.storageClassName,
            accessModes: [ "ReadWriteOnce" ],
            resources: {
                requests: {
                    storage: "50Gi",
                },
            },
        },
    },
    deployment: kube.Deployment("synapse") {
        metadata+: app.metadata("synapse"),
        spec+: {
            replicas: 1,
            template+: {
                spec+: {
                    volumes_: {
                        data: kube.PersistentVolumeClaimVolume(app.dataVolume),
                    },
                    containers_: {
                        web: kube.Container("synapse") {
                            image: cfg.image,
                            ports_: {
                                http: { containerPort: 8008 },
                            },
                            env_: {
                                SYNAPSE_SERVER_NAME: cfg.serverName,
                                SYNAPSE_REPORT_STATS: "no",
                                SYNAPSE_NO_TLS: "1",
                                SYNAPSE_ALLOW_GUEST: "yes",

                                POSTGRES_HOST: "postgres",
                                POSTGRES_USER: app.postgres.cfg.username,
                                POSTGRES_PORT: "5432",
                                POSTGRES_DB: app.postgres.cfg.database,
                                POSTGRES_PASSWORD: { secretKeyRef: { name: "synapse", key: "postgres_password" } },
                            },
                            volumeMounts_: {
                                data: { mountPath: "/data" },
                            },
                        },
                    },
                },
            },
        },
    },

    riotConfig: kube.ConfigMap("riot-web-config") {
        metadata+: app.metadata("riot-web-config"),
        data: {
            "config.json": std.manifestJsonEx({
                "default_hs_url": "https://%s" % [cfg.domain],
                "disable_custom_urls": false,
                "disable_guests": false,
                "disable_login_language_selector": false,
                "disable_3pid_login": true,
                "brand": "Riot",
                "integrations_ui_url": "https://scalar.vector.im/",
                "integrations_rest_url": "https://scalar.vector.im/api",
                "integrations_jitsi_widget_url": "https://scalar.vector.im/api/widgets/jitsi.html",

                "bug_report_endpoint_url": "https://riot.im/bugreports/submit",
                "features": {
                    "feature_groups": "labs",
                    "feature_pinning": "labs",
                    "feature_reactions": "labs"
                },
                "default_federate": true,
                "default_theme": "light",
                "roomDirectory": {
                    "servers": [
                        "hackerspace.pl"
                    ]
                },
                "welcomeUserId": "@riot-bot:matrix.org",
                "enable_presence_by_hs_url": {
                    "https://matrix.org": false
                }
            }, ""),
        },
    },

    riotDeployment: kube.Deployment("riot-web") {
        metadata+: app.metadata("riot-web"),
        spec+: {
            replicas: 1,
            template+: {
                spec+: {
                    volumes_: {
                        config: kube.ConfigMapVolume(app.riotConfig),
                    },
                    containers_: {
                        web: kube.Container("synapse") {
                            image: cfg.riotImage,
                            ports_: {
                                http: { containerPort: 80 },
                            },
                            volumeMounts_: {
                                config: {
                                    mountPath: "/etc/riot-web/config.json",
                                    subPath: "config.json",
                                },
                            },
                        },
                    },
                },
            },
        },
    },

    svc: kube.Service("synapse") {
        metadata+: app.metadata("synapse"),
        target_pod:: app.deployment.spec.template,
        spec+: {
            ports: [
                { name: "http", port: 8008, protocol: "TCP" },
            ],
            type: "ClusterIP",
        },
    },

    riotSvc: kube.Service("riot-web") {
        metadata+: app.metadata("riot-web"),
        target_pod:: app.riotDeployment.spec.template,
        spec+: {
            ports: [
                { name: "http", port: 80, protocol: "TCP" },
            ],
            type: "ClusterIP",
        },
    },

    ingress: kube.Ingress("synapse") {
        metadata+: app.metadata("synapse") {
            annotations+: {
                "kubernetes.io/tls-acme": "true",
                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
                "nginx.ingress.kubernetes.io/proxy-body-size": "0",
            },
        },
        spec+: {
            tls: [
                {
                    hosts: [cfg.domain],
                    secretName: "synapse-tls",
                },
            ],
            rules: [
                {
                    host: cfg.domain,
                    http: {
                        paths: [
                            { path: "/", backend: app.riotSvc.name_port },
                            { path: "/_matrix", backend: app.svc.name_port },
                        ]
                    },
                }
            ],
        },
    },
}