WIP: Add osbuild-disk

This mirrors `to-disk`, except instead of having the bootc container install
itself, we're adding osbuild/bib in the middle.

I think this is pretty close to working, but right now it dies deep
in the osbuild stack failing to fetch the image.

But this all works with `to-disk` where bootc-in-container fetches
it.

Assisted-by: Claude Code
Signed-off-by: Colin Walters <[email protected]>

Author: cgwalters

crates/integration-tests/src/main.rs

@@ -15,6 +15,7 @@ mod tests {
     pub mod libvirt_upload_disk;
     pub mod libvirt_verb;
     pub mod mount_feature;
+    pub mod osbuild_disk;
     pub mod run_ephemeral;
     pub mod run_ephemeral_ssh;
     pub mod to_disk;
@@ -243,6 +244,18 @@ fn main() {
             tests::to_disk::test_to_disk_caching();
             Ok(())
         }),
+        Trial::test("osbuild_disk_qcow2", || {
+            tests::osbuild_disk::test_osbuild_disk_qcow2();
+            Ok(())
+        }),
+        Trial::test("osbuild_disk_with_config", || {
+            tests::osbuild_disk::test_osbuild_disk_with_config();
+            Ok(())
+        }),
+        Trial::test("osbuild_disk_raw", || {
+            tests::osbuild_disk::test_osbuild_disk_raw();
+            Ok(())
+        }),
         Trial::test("libvirt_list_functionality", || {
             tests::libvirt_verb::test_libvirt_list_functionality();
             Ok(())

crates/integration-tests/src/tests/osbuild_disk.rs

@@ -0,0 +1,231 @@
+//! Integration tests for osbuild-disk command
+//!
+//! ⚠️  **CRITICAL INTEGRATION TEST POLICY** ⚠️
+//!
+//! INTEGRATION TESTS MUST NEVER "warn and continue" ON FAILURES!
+//!
+//! If something is not working:
+//! - Use `todo!("reason why this doesn't work yet")`
+//! - Use `panic!("clear error message")`
+//! - Use `assert!()` and `unwrap()` to fail hard
+//!
+//! NEVER use patterns like:
+//! - "Note: test failed - likely due to..."
+//! - "This is acceptable in CI/testing environments"
+//! - Warning and continuing on failures
+
+use camino::Utf8PathBuf;
+use std::process::Command;
+use tempfile::TempDir;
+
+use crate::{run_bcvk, INTEGRATION_TEST_LABEL};
+
+/// Test building a qcow2 disk image with bootc-image-builder
+pub fn test_osbuild_disk_qcow2() {
+    let temp_dir = TempDir::new().expect("Failed to create temp directory");
+    let output_dir =
+        Utf8PathBuf::try_from(temp_dir.path().to_path_buf()).expect("temp path is not UTF-8");
+
+    let output = run_bcvk(&[
+        "osbuild-disk",
+        "--label",
+        INTEGRATION_TEST_LABEL,
+        "quay.io/centos-bootc/centos-bootc:stream10",
+        output_dir.as_str(),
+    ])
+    .expect("Failed to run bcvk osbuild-disk");
+
+    assert!(
+        output.success(),
+        "osbuild-disk failed with exit code: {:?}. stdout: {}, stderr: {}",
+        output.exit_code(),
+        output.stdout,
+        output.stderr
+    );
+
+    // Verify output directory contains qcow2 subdirectory
+    let qcow2_dir = output_dir.join("qcow2");
+    assert!(
+        qcow2_dir.exists(),
+        "qcow2 output directory not found at {}",
+        qcow2_dir
+    );
+
+    // Verify disk.qcow2 file exists
+    let disk_path = qcow2_dir.join("disk.qcow2");
+    assert!(
+        disk_path.exists(),
+        "disk.qcow2 file not found at {}",
+        disk_path
+    );
+
+    let metadata = std::fs::metadata(&disk_path).expect("Failed to get disk metadata");
+    assert!(metadata.len() > 0, "Disk image is empty");
+
+    // Verify the file is actually qcow2 format using qemu-img info
+    let qemu_img_output = Command::new("qemu-img")
+        .args(["info", disk_path.as_str()])
+        .output()
+        .expect("Failed to run qemu-img info");
+
+    let qemu_img_stdout = String::from_utf8_lossy(&qemu_img_output.stdout);
+
+    assert!(
+        qemu_img_output.status.success(),
+        "qemu-img info failed with exit code: {:?}",
+        qemu_img_output.status.code()
+    );
+
+    assert!(
+        qemu_img_stdout.contains("file format: qcow2"),
+        "qemu-img info doesn't show qcow2 format. Output was:\n{}",
+        qemu_img_stdout
+    );
+
+    assert!(
+        output.stdout.contains("Build completed successfully!")
+            || output.stderr.contains("Build completed successfully!"),
+        "No 'Build completed successfully!' message found in output. stdout: {}, stderr: {}",
+        output.stdout,
+        output.stderr
+    );
+}
+
+/// Test building with a custom config file
+pub fn test_osbuild_disk_with_config() {
+    let temp_dir = TempDir::new().expect("Failed to create temp directory");
+    let output_dir =
+        Utf8PathBuf::try_from(temp_dir.path().join("output")).expect("temp path is not UTF-8");
+    std::fs::create_dir_all(&output_dir).expect("Failed to create output directory");
+
+    // Create a simple config file with user customization
+    let config_path = temp_dir.path().join("config.toml");
+    let config_content = r#"
+[[customizations.user]]
+name = "testuser"
+password = "testpass"
+groups = ["wheel"]
+"#;
+    std::fs::write(&config_path, config_content).expect("Failed to write config file");
+
+    let config_path_str = config_path.to_str().expect("Config path is not UTF-8");
+
+    let output = run_bcvk(&[
+        "osbuild-disk",
+        "--label",
+        INTEGRATION_TEST_LABEL,
+        "--config",
+        config_path_str,
+        "quay.io/centos-bootc/centos-bootc:stream10",
+        output_dir.as_str(),
+    ])
+    .expect("Failed to run bcvk osbuild-disk with config");
+
+    assert!(
+        output.success(),
+        "osbuild-disk with config failed with exit code: {:?}. stdout: {}, stderr: {}",
+        output.exit_code(),
+        output.stdout,
+        output.stderr
+    );
+
+    // Verify output directory contains qcow2 subdirectory
+    let qcow2_dir = output_dir.join("qcow2");
+    assert!(
+        qcow2_dir.exists(),
+        "qcow2 output directory not found at {}",
+        qcow2_dir
+    );
+
+    // Verify disk.qcow2 file exists
+    let disk_path = qcow2_dir.join("disk.qcow2");
+    assert!(
+        disk_path.exists(),
+        "disk.qcow2 file not found at {}",
+        disk_path
+    );
+
+    let metadata = std::fs::metadata(&disk_path).expect("Failed to get disk metadata");
+    assert!(metadata.len() > 0, "Disk image is empty");
+
+    assert!(
+        output.stdout.contains("Build completed successfully!")
+            || output.stderr.contains("Build completed successfully!"),
+        "No 'Build completed successfully!' message found in output. stdout: {}, stderr: {}",
+        output.stdout,
+        output.stderr
+    );
+}
+
+/// Test building a raw disk image
+pub fn test_osbuild_disk_raw() {
+    let temp_dir = TempDir::new().expect("Failed to create temp directory");
+    let output_dir =
+        Utf8PathBuf::try_from(temp_dir.path().to_path_buf()).expect("temp path is not UTF-8");
+
+    let output = run_bcvk(&[
+        "osbuild-disk",
+        "--label",
+        INTEGRATION_TEST_LABEL,
+        "--type",
+        "raw",
+        "quay.io/centos-bootc/centos-bootc:stream10",
+        output_dir.as_str(),
+    ])
+    .expect("Failed to run bcvk osbuild-disk with raw format");
+
+    assert!(
+        output.success(),
+        "osbuild-disk with raw format failed with exit code: {:?}. stdout: {}, stderr: {}",
+        output.exit_code(),
+        output.stdout,
+        output.stderr
+    );
+
+    // Verify output directory contains image subdirectory (raw images go here)
+    let image_dir = output_dir.join("image");
+    assert!(
+        image_dir.exists(),
+        "image output directory not found at {}",
+        image_dir
+    );
+
+    // Verify disk.raw file exists
+    let disk_path = image_dir.join("disk.raw");
+    assert!(
+        disk_path.exists(),
+        "disk.raw file not found at {}",
+        disk_path
+    );
+
+    let metadata = std::fs::metadata(&disk_path).expect("Failed to get disk metadata");
+    assert!(metadata.len() > 0, "Disk image is empty");
+
+    // Verify the file is raw format using qemu-img info
+    let qemu_img_output = Command::new("qemu-img")
+        .args(["info", disk_path.as_str()])
+        .output()
+        .expect("Failed to run qemu-img info");
+
+    let qemu_img_stdout = String::from_utf8_lossy(&qemu_img_output.stdout);
+
+    assert!(
+        qemu_img_output.status.success(),
+        "qemu-img info failed with exit code: {:?}",
+        qemu_img_output.status.code()
+    );
+
+    assert!(
+        qemu_img_stdout.contains("file format: raw"),
+        "qemu-img info doesn't show raw format. Output was:\n{}",
+        qemu_img_stdout
+    );
+
+    assert!(
+        output.stdout.contains("Build completed successfully!")
+            || output.stderr.contains("Build completed successfully!"),
+        "No 'Build completed successfully!' message found in output. stdout: {}, stderr: {}",
+        output.stdout,
+        output.stderr
+    );
+}

crates/kit/src/main.rs

@@ -19,6 +19,7 @@ mod images;
 mod install_options;
 mod libvirt;
 mod libvirt_upload_disk;
+mod osbuild_disk;
 #[allow(dead_code)]
 mod podman;
 #[allow(dead_code)]
@@ -113,6 +114,10 @@ enum Commands {
     #[clap(name = "to-disk")]
     ToDisk(to_disk::ToDiskOpts),
 
+    /// Build disk images using bootc-image-builder
+    #[clap(name = "osbuild-disk")]
+    OsbuildDisk(osbuild_disk::OsbuildDiskOpts),
+
     /// Manage libvirt integration for bootc containers
     Libvirt {
         /// Hypervisor connection URI (e.g., qemu:///system, qemu+ssh://host/system)
@@ -187,6 +192,9 @@ fn main() -> Result<(), Report> {
         Commands::ToDisk(opts) => {
             to_disk::run(opts)?;
         }
+        Commands::OsbuildDisk(opts) => {
+            osbuild_disk::run(opts)?;
+        }
         Commands::Libvirt { connect, command } => {
             let options = libvirt::LibvirtOptions { connect };
             match command {