Configure Claude Code for sandboxed workspaces

- Add credentials bind mount in container.nix
- Create claude-credentials-dir service to copy credentials for VMs
- Generate .claude.json with onboarding skipped and workspace trusted
- Add allowUnfree to container config

common/sandboxed-workspace/container.nix

@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 
 # Container-specific configuration for sandboxed workspaces using systemd-nspawn
 # This module is imported by default.nix for workspaces with type = "container"
@@ -47,10 +47,16 @@ in
             hostPath = "/home/googlebot/sandboxed/${name}/ssh-host-keys";
             isReadOnly = false;
           };
+          # Per-workspace claude config for isolated session data
           "/home/googlebot/claude-config" = {
             hostPath = "/home/googlebot/sandboxed/${name}/claude-config";
             isReadOnly = false;
           };
+          # Share credentials from host (read-only)
+          "/home/googlebot/claude-config/.credentials.json" = {
+            hostPath = "/home/googlebot/.claude/.credentials.json";
+            isReadOnly = true;
+          };
         };
 
         config = { config, lib, pkgs, ... }: {
@@ -65,6 +71,8 @@ in
           ];
 
           networking.useHostResolvConf = false;
+
+          nixpkgs.config.allowUnfree = true;
         };
       })
       containerWorkspaces;

common/sandboxed-workspace/default.nix

@@ -118,40 +118,79 @@ in
       cfg.workspaces);
 
     # Automatically generate SSH host keys and directories for all workspaces
-    systemd.services = lib.mapAttrs'
+    systemd.services = lib.mkMerge [
-      (name: ws:
+      # Create credentials-only directory for VMs (symlinks to actual credentials)
-        let
+      {
-          serviceName = if ws.type == "vm" then "microvm@${name}" else "container@${name}";
+        claude-credentials-dir = {
-        in
+          description = "Setup Claude credentials directory for VM workspaces";
-        lib.nameValuePair "workspace-${name}-setup" {
-          description = "Setup directories and SSH keys for workspace ${name}";
           wantedBy = [ "multi-user.target" ];
-          before = [ "${serviceName}.service" ];
-
           serviceConfig = {
             Type = "oneshot";
             RemainAfterExit = true;
+            User = "googlebot";
+            Group = "users";
           };
-
           script = ''
-            # Create directories if they don't exist
+            mkdir -p /home/googlebot/.claude-credentials
-            mkdir -p /home/googlebot/sandboxed/${name}/workspace
+            # Copy credentials file (not symlink - virtiofs can't follow host symlinks)
-            mkdir -p /home/googlebot/sandboxed/${name}/ssh-host-keys
+            if [ -f /home/googlebot/.claude/.credentials.json ]; then
-            mkdir -p /home/googlebot/sandboxed/${name}/claude-config
+              cp /home/googlebot/.claude/.credentials.json /home/googlebot/.claude-credentials/.credentials.json
-
+              chmod 600 /home/googlebot/.claude-credentials/.credentials.json
-            # Fix ownership
-            chown -R googlebot:users /home/googlebot/sandboxed/${name}
-
-            # Generate SSH host key if it doesn't exist
-            if [ ! -f /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key ]; then
-              ${pkgs.openssh}/bin/ssh-keygen -t ed25519 -N "" \
-                -f /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key
-              chown googlebot:users /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key*
-              echo "Generated SSH host key for workspace ${name}"
             fi
           '';
-        }
+        };
-      )
+      }
-      cfg.workspaces;
+      # Per-workspace setup services
+      (lib.mapAttrs'
+        (name: ws:
+          let
+            serviceName = if ws.type == "vm" then "microvm@${name}" else "container@${name}";
+            claudeConfig = builtins.toJSON {
+              hasCompletedOnboarding = true;
+              theme = "dark";
+              projects = {
+                "/home/googlebot/workspace" = {
+                  hasTrustDialogAccepted = true;
+                };
+              };
+            };
+          in
+          lib.nameValuePair "workspace-${name}-setup" {
+            description = "Setup directories and SSH keys for workspace ${name}";
+            wantedBy = [ "multi-user.target" ];
+            before = [ "${serviceName}.service" ];
+
+            serviceConfig = {
+              Type = "oneshot";
+              RemainAfterExit = true;
+            };
+
+            script = ''
+              # Create directories if they don't exist
+              mkdir -p /home/googlebot/sandboxed/${name}/workspace
+              mkdir -p /home/googlebot/sandboxed/${name}/ssh-host-keys
+              mkdir -p /home/googlebot/sandboxed/${name}/claude-config
+
+              # Fix ownership
+              chown -R googlebot:users /home/googlebot/sandboxed/${name}
+
+              # Generate SSH host key if it doesn't exist
+              if [ ! -f /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key ]; then
+                ${pkgs.openssh}/bin/ssh-keygen -t ed25519 -N "" \
+                  -f /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key
+                chown googlebot:users /home/googlebot/sandboxed/${name}/ssh-host-keys/ssh_host_ed25519_key*
+                echo "Generated SSH host key for workspace ${name}"
+              fi
+
+              # Create claude-code config to skip onboarding and trust ~/workspace
+              if [ ! -f /home/googlebot/sandboxed/${name}/claude-config/.claude.json ]; then
+                echo '${claudeConfig}' > /home/googlebot/sandboxed/${name}/claude-config/.claude.json
+                chown googlebot:users /home/googlebot/sandboxed/${name}/claude-config/.claude.json
+              fi
+            '';
+          }
+        )
+        cfg.workspaces)
+    ];
   };
 }