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Merged
ondrejbudai merged 7 commits into from
Sep 12, 2025
Merged

many: add bootc based manifest checksums #1821

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1fafdbf
bib: add bibcontainer.Arch helper
mvo5 Sep 2, 2025
a3527bb
gen-manifests: add panic() handler
mvo5 Sep 2, 2025
7fd80f6
gen-manifests: use json.NewDecoder() instead of io.ReadAll
mvo5 Sep 1, 2025
4530164
many: add support to generate bootc fake manifests
mvo5 Jul 16, 2025
7153c12
test: add bootc manifest checksums
mvo5 Sep 2, 2025
f382aee
test: add bootc manifest tests with build containers
mvo5 Sep 4, 2025
be4fd48
test: filter bootc-* distros when validate_build_config()
mvo5 Sep 5, 2025
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40 changes: 40 additions & 0 deletions pkg/bib/container/container.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package container

import (
"encoding/json"
"errors"
"fmt"
"os"
"os/exec"
Expand All @@ -16,6 +17,7 @@ import (
type Container struct {
id string
root string
arch string
}

// New creates a new running container from the given image reference.
Expand Down Expand Up @@ -62,6 +64,15 @@ func New(ref string) (*Container, error) {
c = nil
}
}()
// not all containers set {{.Architecture}} so fallback
c.arch, err = findContainerArchInspect(c.id, ref)
if err != nil {
var err2 error
c.arch, err2 = findContainerArchUname(c.id, ref)
if err2 != nil {
return nil, errors.Join(err, err2)
}
}

/* #nosec G204 */
output, err = exec.Command("podman", "mount", c.id).Output()
Expand Down Expand Up @@ -98,6 +109,11 @@ func (c *Container) Root() string {
return c.root
}

// Arch returns the architecture of the container
func (c *Container) Arch() string {
return c.arch
}

// Reads a file from the container
func (c *Container) ReadFile(path string) ([]byte, error) {
/* #nosec G204 */
Expand Down Expand Up @@ -168,3 +184,27 @@ func (c *Container) DefaultRootfsType() (string, error) {

return fsType, nil
}

func findContainerArchInspect(cntId, ref string) (string, error) {

@ondrejbudai ondrejbudai Sep 12, 2025

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AFAIK the associated image always has an arch, I was able to retrieve the arch for ubi9 like this:

obudai@outland ~> podman ps
CONTAINER ID  IMAGE                                   COMMAND     CREATED             STATUS             PORTS       NAMES
2eaa8a5d582c  registry.access.redhat.com/ubi9:latest  /bin/bash   About a minute ago  Up About a minute              charming_dubinsky
obudai@outland ~> podman inspect -f '{{.Image}}' 2eaa8a5d582c
28fbac8f0a2b3ee82129b9feaae59d029a5eba93e5372002d2612d965979101a
obudai@outland ~> podman image inspect -f '{{.Architecture}}' 28fbac8f0a2b3ee82129b9feaae59d029a5eba93e5372002d2612d965979101a
arm64

Could be a tad cleaner than execing? Not sure. Alternatively, we can just always exec so there's just one codepath.

/* #nosec G204 */
output, err := exec.Command("podman", "inspect", "-f", "{{.Architecture}}", cntId).Output()
if err != nil {
if err, ok := err.(*exec.ExitError); ok {
return "", fmt.Errorf("inspecting container %q failed: %w\nstderr:\n%s", ref, err, err.Stderr)
}
return "", fmt.Errorf("inspecting %s container failed with generic error: %w", ref, err)
}
return strings.TrimSpace(string(output)), nil
}

func findContainerArchUname(cntId, ref string) (string, error) {
/* #nosec G204 */
output, err := exec.Command("podman", "exec", cntId, "uname", "-m").Output()
if err != nil {
if err, ok := err.(*exec.ExitError); ok {
return "", fmt.Errorf("running 'uname -m' from container %q failed: %w\nstderr:\n%s", cntId, err, err.Stderr)
}
return "", fmt.Errorf("running 'uname -m' from container %q failed with generic error: %w", cntId, err)
}
return strings.TrimSpace(string(output)), nil
}