Generate deploy/ automatically

Makefile

@@ -1,5 +1,5 @@
 .DEFAULT: all
-.PHONY: all release-bins clean realclean test integration-test check-generated
+.PHONY: all release-bins clean realclean test integration-test generate-deploy check-generated
 
 SUDO := $(shell docker info > /dev/null 2> /dev/null || echo "sudo")
 
@@ -120,10 +120,15 @@ $(GOBIN)/helm-operator: $(HELM_OPERATOR_DEPS)
 integration-test: all
 	test/bin/test-flux
 
+
+
+generate-deploy: install/generated_templates.gogen.go
+	cd deploy && go run ../install/generate.go deploy
+
 install/generated_templates.gogen.go: install/templates/*
-	cd install && go run generate.go
+	cd install && go run generate.go embedded-templates
 
-check-generated: install/generated_templates.gogen.go
+check-generated: generate-deploy install/generated_templates.gogen.go
 	./bin/helm/update_codegen.sh
 	git diff --exit-code -- integrations/apis intergrations/client install/generated_templates.gogen.go
 

cmd/fluxctl/install_cmd.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"io"
 	"os"
 
 	"github.com/spf13/cobra"
@@ -28,7 +27,7 @@ fluxctl install --git-url 'git@github.com:<your username>/flux-get-started' | ku
 		"URL of the Git repository to be used by Flux, e.g. git@github.com:<your username>/flux-get-started")
 	cmd.Flags().StringVarP(&opts.GitBranch, "git-branch", "", "master",
 		"Git branch to be used by Flux")
-	cmd.Flags().StringSliceVarP(&opts.GitPaths, "git-paths", "", []string{"/"},
+	cmd.Flags().StringSliceVarP(&opts.GitPaths, "git-paths", "", []string{},
 		"Relative paths within the Git repo for Flux to locate Kubernetes manifests")
 	cmd.Flags().StringVarP(&opts.GitLabel, "git-label", "", "flux",
 		"Git label to keep track of Flux's sync progress; overrides both --git-sync-tag and --git-notes-ref")
@@ -47,12 +46,16 @@ func (opts *installOpts) RunE(cmd *cobra.Command, args []string) error {
 	if opts.GitURL == "" {
 		fmt.Errorf("please supply a valid --git-url argument")
 	}
-	templates, err := install.FillInInstallTemplates(install.TemplateParameters(*opts))
+	manifests, err := install.FillInInstallTemplates(install.TemplateParameters(*opts))
 	if err != nil {
 		return err
 	}
-	_, err = io.Copy(os.Stdout, templates)
-	return err
+	for fileName, content := range manifests {
+		if _, err := os.Stdout.Write(content); err != nil {
+			fmt.Errorf("cannot output manifest file %s: %s", fileName, err)
+		}
+
+	}
 
 	return nil
 }

deploy/flux-account.yaml

@@ -0,0 +1,37 @@
+---
+# The service account, cluster roles, and cluster role binding are
+# only needed for Kubernetes with role-based access control (RBAC).
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  labels:
+    name: flux
+  name: flux
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  labels:
+    name: flux
+  name: flux
+rules:
+  - apiGroups: ['*']
+    resources: ['*']
+    verbs: ['*']
+  - nonResourceURLs: ['*']
+    verbs: ['*']
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    name: flux
+  name: flux
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: flux
+subjects:
+  - kind: ServiceAccount
+    name: flux
+    namespace: default

deploy/flux-deployment.yaml

@@ -0,0 +1,151 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: flux
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: flux
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      annotations:
+        prometheus.io.port: "3031" # tell prometheus to scrape /metrics endpoint's port.
+      labels:
+        name: flux
+    spec:
+      serviceAccountName: flux
+      volumes:
+      - name: git-key
+        secret:
+          secretName: flux-git-deploy
+          defaultMode: 0400 # when mounted read-only, we won't be able to chmod
+
+      # This is a tmpfs used for generating SSH keys. In K8s >= 1.10,
+      # mounted secrets are read-only, so we need a separate volume we
+      # can write to.
+      - name: git-keygen
+        emptyDir:
+          medium: Memory
+
+      # The following volume is for using a customised known_hosts
+      # file, which you will need to do if you host your own git
+      # repo rather than using github or the like. You'll also need to
+      # mount it into the container, below. See
+      # https://github.com/weaveworks/flux/blob/master/site/standalone-setup.md#using-a-private-git-host
+      # - name: ssh-config
+      #   configMap:
+      #     name: flux-ssh-config
+
+      # The following volume is for using a customised .kube/config,
+      # which you will need to do if you wish to have a different
+      # default namespace. You will also need to provide the configmap
+      # with an entry for `config`, and uncomment the volumeMount and
+      # env entries below.
+      # - name: kubeconfig
+      #   configMap:
+      #     name: flux-kubeconfig
+
+      # The following volume is used to import GPG keys (for signing
+      # and verification purposes). You will also need to provide the
+      # secret with the keys, and uncomment the volumeMount and args
+      # below.
+      # - name: gpg-keys
+      #   secret:
+      #     secretName: flux-gpg-keys
+      #     defaultMode: 0400
+
+      containers:
+      - name: flux
+        # There are no ":latest" images for flux. Find the most recent
+        # release or image version at https://hub.docker.com/r/weaveworks/flux/tags
+        # and replace the tag here.
+        image: docker.io/fluxcd/flux:1.13.2
+        imagePullPolicy: IfNotPresent
+        resources:
+          requests:
+            cpu: 50m
+            memory: 64Mi
+        ports:
+        - containerPort: 3030 # informational
+        volumeMounts:
+        - name: git-key
+          mountPath: /etc/fluxd/ssh # to match location given in image's /etc/ssh/config
+          readOnly: true # this will be the case perforce in K8s >=1.10
+        - name: git-keygen
+          mountPath: /var/fluxd/keygen # to match location given in image's /etc/ssh/config
+
+        # Include this if you need to mount a customised known_hosts
+        # file; you'll also need the volume declared above.
+        # - name: ssh-config
+        #   mountPath: /root/.ssh
+
+        # Include this and the volume "kubeconfig" above, and the
+        # environment entry "KUBECONFIG" below, to override the config
+        # used by kubectl.
+        # - name: kubeconfig
+        #   mountPath: /etc/fluxd/kube
+
+        # Include this to point kubectl at a different config; you
+        # will need to do this if you have mounted an alternate config
+        # from a configmap, as in commented blocks above.
+        # env:
+        # - name: KUBECONFIG
+        #   value: /etc/fluxd/kube/config
+
+        # Include this and the volume "gpg-keys" above, and the
+        # args below.
+        # - name: gpg-keys
+        #   mountPath: /root/gpg-import
+        #   readOnly: true
+
+        args:
+
+        # If you deployed memcached in a different namespace to flux,
+        # or with a different service name, you can supply these
+        # following two arguments to tell fluxd how to connect to it.
+        # - --memcached-hostname=memcached.default.svc.cluster.local
+
+        # Use the memcached ClusterIP service name by setting the
+        # memcached-service to string empty
+        - --memcached-service=
+
+        # This must be supplied, and be in the tmpfs (emptyDir)
+        # mounted above, for K8s >= 1.10
+        - --ssh-keygen-dir=/var/fluxd/keygen
+
+        # Replace the following URL to change the Git repository used by Flux.
+        - --git-url=git@github.com:weaveworks/flux-get-started
+        - --git-branch=master
+        # include this if you want to restrict the manifests considered by flux
+        # to those under the following relative paths in the git repository
+        # - --git-path=subdir1,subdir2
+
+        # Include these two to enable git commit signing
+        # - --git-gpg-key-import=/root/gpg-import
+        # - --git-signing-key=<key id>
+
+        # Include this to enable git signature verification
+        # - --git-verify-signatures
+
+        # Include these next two to connect to an "upstream" service
+        # (e.g., Weave Cloud). The token is particular to the service.
+        # - --connect=wss://cloud.weave.works/api/flux
+        # - --token=abc123abc123abc123abc123
+
+        # Serve /metrics endpoint at different port;
+        # make sure to set prometheus' annotation to scrape the port value.
+        - --listen-metrics=:3031
+
+
+
+      # Optional DNS settings, configuring the ndots option may resolve
+      # nslookup issues on some Kubernetes setups.
+      # dnsPolicy: "None"
+      # dnsConfig:
+      #   options:
+      #     - name: ndots
+      #       value: "1"

deploy/flux-secret.yaml

@@ -0,0 +1,6 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: flux-git-deploy
+type: Opaque

deploy/memcache-dep.yaml

@@ -0,0 +1,33 @@
+---
+# memcached deployment used by Flux to cache
+# container image metadata.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: memcached
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: memcached
+  template:
+    metadata:
+      labels:
+        name: memcached
+    spec:
+      containers:
+      - name: memcached
+        image: memcached:1.5.15
+        imagePullPolicy: IfNotPresent
+        args:
+        - -m 512   # Maximum memory to use, in megabytes
+        - -I 5m    # Maximum size for one item
+        - -p 11211 # Default port
+        # - -vv    # Uncomment to get logs of each request and response.
+        ports:
+        - name: clients
+          containerPort: 11211
+        securityContext:
+          runAsUser: 11211
+          runAsGroup: 11211
+          allowPrivilegeEscalation: false

deploy/memcache-svc.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: memcached
+spec:
+  ports:
+    - name: memcached
+      port: 11211
+  selector:
+    name: memcached

install/generate.go

@@ -3,20 +3,53 @@
 package main
 
 import (
+	"fmt"
+	"io/ioutil"
 	"log"
 	"net/http"
+	"os"
 
 	"github.com/shurcooL/vfsgen"
+	"github.com/weaveworks/flux/install"
 )
 
 func main() {
-	var fs http.FileSystem = http.Dir("templates/")
-	err := vfsgen.Generate(fs, vfsgen.Options{
-		Filename:     "generated_templates.gogen.go",
-		PackageName:  "install",
-		VariableName: "templates",
-	})
-	if err != nil {
-		log.Fatalln(err)
+	usage := func() {
+		fmt.Fprintf(os.Stderr, "usage: %s {embedded-templates,deploy}\n", os.Args[0])
+		os.Exit(1)
+	}
+	if len(os.Args) != 2 {
+		usage()
+	}
+	switch os.Args[1] {
+	case "embedded-templates":
+		var fs http.FileSystem = http.Dir("templates/")
+		err := vfsgen.Generate(fs, vfsgen.Options{
+			Filename:     "generated_templates.gogen.go",
+			PackageName:  "install",
+			VariableName: "templates",
+		})
+		if err != nil {
+			log.Fatalln(err)
+		}
+	case "deploy":
+		params := install.TemplateParameters{
+			GitURL:    "git@github.com:weaveworks/flux-get-started",
+			GitBranch: "master",
+		}
+		manifests, err := install.FillInInstallTemplates(params)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "error: failed to fill in templates: %s\n", err)
+			os.Exit(1)
+		}
+		for fileName, contents := range manifests {
+			if err := ioutil.WriteFile(fileName, contents, 0600); err != nil {
+				fmt.Fprintf(os.Stderr, "error: failed to write deploy file %s: %s\n", fileName, err)
+				os.Exit(1)
+			}
+		}
+
+	default:
+		usage()
 	}
 }