Adds start and stop commands (#88)

* Adds start and stop commands

Issue: PGO-450

Author: tony-landreth

docs/content/reference/_index.md

@@ -44,6 +44,8 @@ pgo is a kubectl plugin for PGO, the open source Postgres Operator from Crunchy
 * [pgo delete](/reference/pgo_delete/)	 - Delete a resource
 * [pgo restore](/reference/pgo_restore/)	 - Restore cluster
 * [pgo show](/reference/pgo_show/)	 - Show PostgresCluster details
+* [pgo start](/reference/pgo_start/)	 - Start cluster
+* [pgo stop](/reference/pgo_stop/)	 - Stop cluster
 * [pgo support](/reference/pgo_support/)	 - Crunchy Support commands for PGO
 * [pgo version](/reference/pgo_version/)	 - PGO client and operator versions
 

docs/content/reference/pgo_start.md

@@ -0,0 +1,71 @@
+---
+title: pgo start
+---
+## pgo start
+
+Start cluster
+
+### Synopsis
+
+Start sets the spec.shutdown field to false, allowing you to start a PostgreSQL cluster.
+The --force-conflicts flag may be required if the spec.shutdown field has been updated by another client.
+
+### RBAC Requirements
+    Resources                                           Verbs
+    ---------                                           -----
+    postgresclusters.postgres-operator.crunchydata.com  [get patch]
+
+### Usage
+
+```
+pgo start CLUSTER_NAME [flags]
+```
+
+### Examples
+
+```
+# Start a 'hippo' postgrescluster.
+pgo start hippo
+
+# Resolve ownership conflict
+pgo start hippo --force-conflicts
+
+```
+### Example output
+```
+postgresclusters/hippo start initiated
+```
+
+### Options
+
+```
+      --force-conflicts   take ownership and overwrite the shutdown setting
+  -h, --help              help for start
+```
+
+### Options inherited from parent commands
+
+```
+      --as string                      Username to impersonate for the operation. User could be a regular user or a service account in a namespace.
+      --as-group stringArray           Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
+      --as-uid string                  UID to impersonate for the operation.
+      --cache-dir string               Default cache directory (default "$HOME/.kube/cache")
+      --certificate-authority string   Path to a cert file for the certificate authority
+      --client-certificate string      Path to a client certificate file for TLS
+      --client-key string              Path to a client key file for TLS
+      --cluster string                 The name of the kubeconfig cluster to use
+      --context string                 The name of the kubeconfig context to use
+      --insecure-skip-tls-verify       If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
+      --kubeconfig string              Path to the kubeconfig file to use for CLI requests.
+  -n, --namespace string               If present, the namespace scope for this CLI request
+      --request-timeout string         The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default "0")
+  -s, --server string                  The address and port of the Kubernetes API server
+      --tls-server-name string         Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used
+      --token string                   Bearer token for authentication to the API server
+      --user string                    The name of the kubeconfig user to use
+```
+
+### SEE ALSO
+
+* [pgo](/reference/)	 - pgo is a kubectl plugin for PGO, the open source Postgres Operator
+

docs/content/reference/pgo_stop.md

@@ -0,0 +1,71 @@
+---
+title: pgo stop
+---
+## pgo stop
+
+Stop cluster
+
+### Synopsis
+
+Stop sets the spec.shutdown field to true, allowing you to stop a PostgreSQL cluster.
+The --force-conflicts flag may be required if the spec.shutdown field has been used before.
+
+### RBAC Requirements
+    Resources                                           Verbs
+    ---------                                           -----
+    postgresclusters.postgres-operator.crunchydata.com  [get patch]
+
+### Usage
+
+```
+pgo stop CLUSTER_NAME [flags]
+```
+
+### Examples
+
+```
+# Stop a 'hippo' postgrescluster.
+pgo stop hippo
+
+# Resolve ownership conflict
+pgo stop hippo --force-conflicts
+
+```
+### Example output
+```
+postgresclusters/hippo stop initiated
+```
+
+### Options
+
+```
+      --force-conflicts   take ownership and overwrite the shutdown setting
+  -h, --help              help for stop
+```
+
+### Options inherited from parent commands
+
+```
+      --as string                      Username to impersonate for the operation. User could be a regular user or a service account in a namespace.
+      --as-group stringArray           Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
+      --as-uid string                  UID to impersonate for the operation.
+      --cache-dir string               Default cache directory (default "$HOME/.kube/cache")
+      --certificate-authority string   Path to a cert file for the certificate authority
+      --client-certificate string      Path to a client certificate file for TLS
+      --client-key string              Path to a client key file for TLS
+      --cluster string                 The name of the kubeconfig cluster to use
+      --context string                 The name of the kubeconfig context to use
+      --insecure-skip-tls-verify       If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
+      --kubeconfig string              Path to the kubeconfig file to use for CLI requests.
+  -n, --namespace string               If present, the namespace scope for this CLI request
+      --request-timeout string         The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests. (default "0")
+  -s, --server string                  The address and port of the Kubernetes API server
+      --tls-server-name string         Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used
+      --token string                   Bearer token for authentication to the API server
+      --user string                    The name of the kubeconfig user to use
+```
+
+### SEE ALSO
+
+* [pgo](/reference/)	 - pgo is a kubectl plugin for PGO, the open source Postgres Operator
+

internal/cmd/delete.go

@@ -15,17 +15,16 @@
 package cmd
 
 import (
-	"bufio"
 	"context"
 	"fmt"
-	"io"
 	"os"
 
 	"github.com/spf13/cobra"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"github.com/crunchydata/postgres-operator-client/internal"
 	"github.com/crunchydata/postgres-operator-client/internal/apis/postgres-operator.crunchydata.com/v1beta1"
+	"github.com/crunchydata/postgres-operator-client/internal/util"
 )
 
 // newDeleteCommand returns the delete subcommand of the PGO plugin.
@@ -80,7 +79,7 @@ postgresclusters/hippo deleted`)
 		for i := 0; confirmed == nil && i < 10; i++ {
 			// retry 10 times or until a confirmation is given or denied,
 			// whichever comes first
-			confirmed = confirm(os.Stdin, os.Stdout)
+			confirmed = util.Confirm(os.Stdin, os.Stdout)
 		}
 
 		if confirmed == nil || !*confirmed {
@@ -112,38 +111,6 @@ postgresclusters/hippo deleted`)
 	return cmd
 }
 
-// confirm uses a Scanner to parse user input. A user must type in "yes" or "no"
-// and then press enter. It has fuzzy matching, so "y", "Y", "yes", "YES",
-// and "Yes" all count as confirmations and return 'true'. Similarly, "n", "N",
-// "no", "No", "NO" all deny confirmation and return 'false'. If the input is not
-// recognized, nil is returned.
-func confirm(reader io.Reader, writer io.Writer) *bool {
-	var response string
-	var boolVar bool
-
-	scanner := bufio.NewScanner(reader)
-	if scanner.Scan() {
-		response = scanner.Text()
-	}
-
-	if scanner.Err() != nil || response == "" {
-		fmt.Fprint(writer, "Please type yes or no and then press enter: ")
-		return nil
-	}
-
-	yesResponses := []string{"y", "Y", "yes", "Yes", "YES"}
-	noResponses := []string{"n", "N", "no", "No", "NO"}
-	if containsString(yesResponses, response) {
-		boolVar = true
-		return &boolVar
-	} else if containsString(noResponses, response) {
-		return &boolVar
-	} else {
-		fmt.Fprint(writer, "Please type yes or no and then press enter: ")
-		return nil
-	}
-}
-
 // containsString returns true if slice contains element
 func containsString(slice []string, element string) bool {
 	for _, elem := range slice {

internal/cmd/delete_test.go

@@ -15,56 +15,11 @@
 package cmd
 
 import (
-	"bytes"
-	"io"
-	"strings"
 	"testing"
 
 	"gotest.tools/v3/assert"
 )
 
-func TestConfirmDelete(t *testing.T) {
-
-	testsCases := []struct {
-		input           string
-		invalidResponse bool
-		confirmed       bool
-	}{
-		{"abc", true, false}, // invalid
-		{"", true, false},    // invalid
-		{"y", false, true},
-		{"Y", false, true},
-		{"yes", false, true},
-		{"Yes", false, true},
-		{"YES", false, true},
-		{"n", false, false},
-		{"N", false, false},
-		{"no", false, false},
-		{"No", false, false},
-		{"NO", false, false},
-		{"yep", true, false},  // invalid
-		{"nope", true, false}, // invalid
-	}
-
-	for _, tc := range testsCases {
-		t.Run("input is "+tc.input, func(t *testing.T) {
-			var reader io.Reader = strings.NewReader(tc.input)
-			var writer bytes.Buffer
-			confirmed := confirm(reader, &writer)
-			if tc.invalidResponse {
-				assert.Assert(t, confirmed == nil)
-				response, err := writer.ReadString(':')
-				assert.NilError(t, err)
-				assert.Equal(t, response, "Please type yes or no and then press enter:")
-
-			} else {
-				assert.Assert(t, confirmed != nil)
-				assert.Assert(t, *confirmed == tc.confirmed)
-			}
-		})
-	}
-}
-
 func TestContainsString(t *testing.T) {
 	testsCases := []struct {
 		desc    string

internal/cmd/pgo.go

@@ -133,6 +133,8 @@ Use "{{.CommandPath}} [command] --help" for more information about a command.{{e
 	root.AddCommand(newShowCommand(config))
 	root.AddCommand(newSupportCommand(config))
 	root.AddCommand(newVersionCommand(config))
+	root.AddCommand(newStopCommand(config))
+	root.AddCommand(newStartCommand(config))
 
 	return root
 }

internal/cmd/restore.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/crunchydata/postgres-operator-client/internal"
 	"github.com/crunchydata/postgres-operator-client/internal/apis/postgres-operator.crunchydata.com/v1beta1"
+	"github.com/crunchydata/postgres-operator-client/internal/util"
 )
 
 func newRestoreCommand(config *internal.Config) *cobra.Command {
@@ -232,11 +233,10 @@ func (config pgBackRestRestore) Run(ctx context.Context) error {
 
 func (config pgBackRestRestore) confirm(attempts int) *bool {
 	for i := 0; i < attempts; i++ {
-		if confirmed := confirm(config.In, config.Out); confirmed != nil {
+		if confirmed := util.Confirm(config.In, config.Out); confirmed != nil {
 			return confirmed
 		}
 	}
-
 	return nil
 }