functions/SoftwareInstall/SetupNewLoadBalancer.ps1
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<#
.SYNOPSIS SetupNewLoadBalancer .DESCRIPTION SetupNewLoadBalancer .INPUTS SetupNewLoadBalancer - The name of SetupNewLoadBalancer .OUTPUTS None .EXAMPLE SetupNewLoadBalancer .EXAMPLE SetupNewLoadBalancer #> function SetupNewLoadBalancer() { [CmdletBinding()] param ( [Parameter(Mandatory=$true)] [ValidateNotNullOrEmpty()] [string] $baseUrl ) Write-Verbose 'SetupNewLoadBalancer: Starting' [hashtable]$Return = @{} WriteToConsole "deleting any old resources" # enable running pods on master # kubectl taint node mymasternode node-role.kubernetes.io/master:NoSchedule Write-Host "deleting existing resources with label traefik" kubectl delete 'pods,services,configMaps,deployments,ingress' -l k8s-traefik=traefik -n kube-system --ignore-not-found=true Write-Host "deleting existing service account for traefik" kubectl delete ServiceAccount traefik-ingress-controller-serviceaccount -n kube-system --ignore-not-found=true AskForSecretValue -secretname "customerid" -prompt "Customer ID " Write-Host "reading secret from kubernetes" $customerid = $(ReadSecretValue -secretname "customerid") $fullhostname = $(hostname --fqdn) Write-Host "Full host name of current machine: $fullhostname" AskForSecretValue -secretname "dnshostname" -prompt "DNS name used to connect to the master VM (leave empty to use $fullhostname)" -namespace "default" -defaultvalue $fullhostname $dnsrecordname = $(ReadSecretValue -secretname "dnshostname") $sslsecret = $(kubectl get secret traefik-cert-ahmn -n kube-system --ignore-not-found=true) if (!$sslsecret) { $certfolder = Read-Host -Prompt "Location of SSL cert files (tls.crt and tls.key): (leave empty to generate self-signed certificates)" if (!$certfolder) { Write-Host "Generating self-signed SSL certificate" sudo yum -y install openssl $u = "$(whoami)" $certfolder = "/opt/healthcatalyst/certs" Write-Host "Creating folder: $certfolder and giving access to $u" sudo mkdir -p "$certfolder" sudo setfacl -m u:$u:rwx "$certfolder" rm -rf "$certfolder/*" cd "$certfolder" # https://gist.github.com/fntlnz/cf14feb5a46b2eda428e000157447309 Write-Host "Generating CA cert" sudo openssl genrsa -out rootCA.key 2048 sudo openssl req -x509 -new -nodes -key rootCA.key -sha256 -days 3650 -subj /CN=HCKubernetes/O=HealthCatalyst/ -out rootCA.crt Write-Host "Generating certificate for $dnsrecordname" sudo openssl genrsa -out tls.key 2048 sudo openssl req -new -key tls.key -subj /CN=$dnsrecordname/O=HealthCatalyst/ -out tls.csr sudo openssl x509 -req -in tls.csr -CA rootCA.crt -CAkey rootCA.key -CAcreateserial -out tls.crt -days 3650 -sha256 sudo cp tls.crt tls.pem cd "~" } ls -al "$certfolder" Write-Host "Deleting any old TLS certs" kubectl delete secret traefik-cert-ahmn -n kube-system --ignore-not-found=true Write-Host "Storing TLS certs as kubernetes secret" kubectl create secret generic traefik-cert-ahmn -n kube-system --from-file="$certfolder/tls.crt" --from-file="$certfolder/tls.key" } $ingressInternalType = "public" $ingressExternalType = "onprem" $externalIp = "" $internalIp = "" # LoadLoadBalancerStack -baseUrl $baseUrl -ssl 1 -customerid $customerid ` # -ingressInternalType $ingressInternalType -ingressExternalType $ingressExternalType ` # -isOnPrem $true ` # -externalSubnetName "" -externalIp "$externalIp" ` # -internalSubnetName "" -internalIp "$internalIp" ` # -local $False Write-Host "installing helm" curl https://raw.githubusercontent.com/helm/helm/master/scripts/get > get_helm.sh chmod 700 get_helm.sh ./get_helm.sh helm init --client-only # https://zero-to-jupyterhub.readthedocs.io/en/stable/setup-helm.html kubectl --namespace kube-system create serviceaccount tiller kubectl create clusterrolebinding tiller --clusterrole cluster-admin --serviceaccount=kube-system:tiller helm init --service-account tiller helm init --upgrade --service-account tiller [string] $package = "nginx" [string] $packageInternal = "nginx-internal" [string] $ngniximageTag = "0.20.0" Write-Output "Removing old deployment" helm del --purge $package helm del --purge $packageInternal Start-Sleep -Seconds 5 # nginx configuration: https://github.com/helm/charts/tree/master/stable/nginx-ingress#configuration Write-Verbose "Installing the public nginx load balancer" helm install stable/nginx-ingress ` --namespace "kube-system" ` --name "$package" ` --set controller.image.tag="$ngniximageTag" # setting values in helm: https://github.com/helm/helm/blob/master/docs/chart_best_practices/values.md # and https://github.com/helm/helm/blob/master/docs/using_helm.md # use "helm inspect values" to see values Write-Verbose "Installing the internal nginx load balancer" # NOTE: helm cannot handle spaces before or after "=" in --set command helm install stable/nginx-ingress ` --namespace "kube-system" ` --name "$packageInternal" ` --set controller.image.tag="$ngniximageTag" Write-Verbose 'SetupNewLoadBalancer: Done' return $Return } Export-ModuleMember -Function 'SetupNewLoadBalancer' |