#!/usr/bin/env bash

TOP=@out@/share/kube-system-bootstrap

ca=@initca@
apiserver="@apiserver@"
filseserver="@fileserver@"
grafana_ldap_toml="@grafana_ldap_toml@"

apply_configs () {
    d=$TOP/config
    configs[0]=$d/cluster-auth-rbac.yaml
    configs[1]=$d/kube-proxy.yaml
    configs[2]=$d/front-proxy-client.yaml
    configs[3]=$d/grafana-smtp-secret.yaml
    [ ! -z $grafana_ldap_toml ] && configs[4]=$d/grafana-ldap-toml.yaml

    kubectl delete secret cluster-ca -n kube-system >/dev/null 2>&1
    kubectl create secret tls cluster-ca \
        --namespace=kube-system --cert=${ca}/ca.pem --key=${ca}/ca-key.pem

    for i in ${configs[@]}; do
        kubectl apply -f $i
    done
}

install_certmgr () {
    kubectl apply -f https://raw.githubusercontent.com/jetstack/cert-manager/release-0.12/deploy/manifests/00-crds.yaml
    helm repo add jetstack https://charts.jetstack.io
    helm install -n kube-system -f $TOP/charts/cert-manager.yaml \
        cert-manager jetstack/cert-manager
}

helm_install () {
    echo "helm install $1"
    helm install -n kube-system -f $TOP/charts/$1.yaml $1 stable/$1
}

helm_delete () {
    echo "helm delete existing $1"
    helm delete -n kube-system $1
}

install_prometheus () {
    helm_delete prometheus-operator
    yaml=/tmp/prometheus-operator.yaml
    cp $TOP/charts/prometheus-operator.yaml $yaml
    chmod 640 $yaml
    # disable ldap for grafana
    [ -z $grafana_ldap_toml ] && \
        sed -i '/auth\.ldap:/,+1 s/true/false/; /ldap:/,+1 d' $yaml
    # disable storage
    [ -z $fileserver ] && \
        sed -i '/prometheusSpec:/,+10d' $yaml
    helm_install prometheus-operator $yaml
}

install_charts () {
    [ ! -z $fileserver ] && charts[0]=nfs-client-provisioner
    charts[1]=nginx-ingress
    charts[2]=metrics-server
    charts[3]=kubernetes-dashboard

    for i in ${charts[@]};do
        helm_install $i
        sleep 30
    done
}

install_prometheus_crds () {
    url=https://raw.githubusercontent.com/helm/charts/master/stable/prometheus-operator/crds
    kubectl apply -f $url/crd-alertmanager.yaml
    kubectl apply -f $url/crd-prometheus.yaml
    kubectl apply -f $url/crd-prometheusrules.yaml
    kubectl apply -f $url/crd-servicemonitor.yaml
    kubectl apply -f $url/crd-podmonitor.yaml
}

helm repo add stable https://kubernetes-charts.storage.googleapis.com
helm repo update

apply_configs
install_prometheus_crds
install_certmgr
install_charts
install_prometheus

# helm install -n kube-system -f sentry.yaml --wait --timeout=1000s sentry stable/sentry
# helm install -n vault -f vault-values.yaml vault hashicorp/vault
# helm install -n monitoring -f kube-prometheus-stack.yaml prometheus prometheus-community/kube-prometheus-stack

# vim:ft=sh