CLI: Exec subcommand host

.changes/unreleased/Added-20250715-202303.yaml

@@ -0,0 +1,3 @@
+kind: Added
+body: 'CLI: Exec subcommand `hosts`. See documentation for more details.'
+time: 2025-07-15T20:23:03.647128713-05:00

cmd/exec.go

@@ -21,7 +21,7 @@ var (
 )
 
 func init() {
-	execCmd.AddCommand(hostExecCommand)
+	execCmd.AddCommand(hostExecCommand, hostsExecCommand)
 
 }
 

cmd/hosts.go

@@ -0,0 +1,55 @@
+package cmd
+
+import (
+	"git.andrewnw.xyz/CyberShell/backy/pkg/backy"
+	"git.andrewnw.xyz/CyberShell/backy/pkg/logging"
+	"github.com/spf13/cobra"
+)
+
+var (
+	hostsExecCommand = &cobra.Command{
+		Use:   "hosts [--command=command1 --command=command2 ... | -c command1 -c command2 ...]",
+		Short: "Runs command defined in config file on the hosts in order specified.",
+		Long:  "Hosts executes specified commands on all the hosts defined in config file.\nUse the --commands or -c flag to choose the commands.",
+		Run:   Hosts,
+	}
+)
+
+func init() {
+
+	hostsExecCommand.Flags().StringArrayVarP(&cmdList, "command", "c", nil, "Accepts space-separated names of commands. Specify multiple times for multiple commands.")
+	parseS3Config()
+
+}
+
+// cli input should be hosts and commands. Hosts are defined in config files.
+// commands can be passed by the following mutually exclusive options:
+//    1. as a list of commands defined in the config file
+//    2. stdin (on command line) (TODO)
+
+func Hosts(cmd *cobra.Command, args []string) {
+	backyConfOpts := backy.NewConfigOptions(configFile,
+		backy.SetLogFile(logFile),
+		backy.EnableCommandStdOut(cmdStdOut),
+		backy.SetHostsConfigFile(hostsConfigFile))
+	backyConfOpts.InitConfig()
+
+	backyConfOpts.ParseConfigurationFile()
+
+	for _, h := range backyConfOpts.Hosts {
+
+		hostsList = append(hostsList, h.Host)
+	}
+
+	if cmdList == nil {
+		logging.ExitWithMSG("error: commands must be specified", 1, &backyConfOpts.Logger)
+	}
+	for _, c := range cmdList {
+		_, cmdFound := backyConfOpts.Cmds[c]
+		if !cmdFound {
+			logging.ExitWithMSG("cmd "+c+" not found", 1, &backyConfOpts.Logger)
+		}
+	}
+
+	backyConfOpts.ExecCmdsOnHosts(cmdList, hostsList)
+}

tests/ErrorHook.yml

@@ -22,7 +22,6 @@ commands:
     outputToLog: true
     Args:
       - "-v"
-    host: email-svr
 
 cmdLists:
   TestHooks:

tests/docker/buildDocker.sh

@@ -1,3 +1,4 @@
+cd ~/Projects/backy/tests/docker
 docker container rm -f ssh_server_container
 docker build -t ssh_server_image .
 docker run -d -p 2222:22 --name ssh_server_container ssh_server_image

tests/hosts.yml

@@ -2,5 +2,5 @@ hosts:
   docker:
     port: 2222
     Hostname: localhost
-    user: backy
+    user: root
     IdentityFile: ./docker/backytest

tests/packageCommands.yml

@@ -38,6 +38,14 @@ commands:
     packageManager: apt
     packageOperation: checkVersion
     
+  installJq:
+    type: package
+    shell: bash
+    packages: 
+      - name: "jq"
+    packageManager: apt
+    packageOperation: install
+
   checkDockerVersionWithInvalidRegex:
     type: package
     shell: zsh