Standardize column spacing in output

Standardizes the column spacing when writing tables to the output to have the same width and padding as with standard docker CLI commands
Includes both Docker App and invocation image outputs

Signed-off-by: Nick Adcock <nick.adcock@docker.com>

Author: zappy-shu

cmd/cnab-run/status.go

@@ -179,7 +179,7 @@ func runningServices(cli command.Cli, instanceName string) ([]swarmtypes.Service
 }
 
 func printServices(out io.Writer, services []swarmtypes.Service) error {
-	w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
+	w := tabwriter.NewWriter(out, 20, 2, 3, ' ', 0)
 	printHeaders(w)
 
 	for _, service := range services {

internal/commands/list.go

@@ -106,7 +106,7 @@ func runList(dockerCli command.Cli, opts listOptions, installerContext *cliopts.
 		return tmpl.Execute(dockerCli.Out(), installations)
 	}
 
-	w := tabwriter.NewWriter(dockerCli.Out(), 0, 0, 1, ' ', 0)
+	w := tabwriter.NewWriter(dockerCli.Out(), 20, 1, 3, ' ', 0)
 	printHeaders(w)
 
 	for _, installation := range installations {

internal/inspect/inspect.go

@@ -280,7 +280,7 @@ func printSection(out io.Writer, len int, printer func(io.Writer), headers ...st
 		return
 	}
 	fmt.Fprintln(out)
-	w := tabwriter.NewWriter(out, 0, 0, 1, ' ', 0)
+	w := tabwriter.NewWriter(out, 20, 1, 3, ' ', 0)
 	fmt.Fprintln(w, strings.Join(headers, "\t"))
 	printer(w)
 	w.Flush()

internal/inspect/testdata/inspect-bundle-pretty.golden

@@ -8,17 +8,17 @@ maintainers:
   email: dev2@example.com
 
 
-SERVICE     IMAGE
-app-watcher watcher
-debug       busybox:latest
-front       nginx
-monitor     busybox:latest
+SERVICE             IMAGE
+app-watcher         watcher
+debug               busybox:latest
+front               nginx
+monitor             busybox:latest
 
-PARAMETER                           VALUE
-com.docker.app.args                 
-com.docker.app.inspect-format       json
-com.docker.app.kubernetes-namespace 
-com.docker.app.orchestrator         
-com.docker.app.render-format        yaml
-com.docker.app.share-registry-creds false
-watcher.cmd                         foo
+PARAMETER                             VALUE
+com.docker.app.args                   
+com.docker.app.inspect-format         json
+com.docker.app.kubernetes-namespace   
+com.docker.app.orchestrator           
+com.docker.app.render-format          yaml
+com.docker.app.share-registry-creds   false
+watcher.cmd                           foo

internal/inspect/testdata/inspect-full.golden

@@ -6,9 +6,9 @@ maintainers:
   email: dev@example.com
 
 
-SERVICE REPLICAS PORTS     IMAGE
-web1    2        8080-8100 nginx:latest
-web2    2        9080-9100 nginx:latest
+SERVICE             REPLICAS            PORTS               IMAGE
+web1                2                   8080-8100           nginx:latest
+web2                2                   9080-9100           nginx:latest
 
 NETWORK
 my-network1
@@ -22,9 +22,9 @@ SECRET
 my-secret1
 my-secret2
 
-PARAMETER VALUE
-port      8080
-text      hello
+PARAMETER           VALUE
+port                8080
+text                hello
 
-ATTACHMENT SIZE
-config.cfg 9B
+ATTACHMENT          SIZE
+config.cfg          9B

internal/inspect/testdata/inspect-overridden.golden

@@ -4,8 +4,8 @@ description: ""
 maintainers: []
 
 
-SERVICE REPLICAS PORTS IMAGE
-web     1        80    nginx
+SERVICE             REPLICAS            PORTS               IMAGE
+web                 1                   80                  nginx
 
-PARAMETER VALUE
-web.port  80
+PARAMETER           VALUE
+web.port            80