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v0.2.0 (#50)

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Co-authored-by: Tasnim Kabir Sadik <tksadik@omukk.dev>

Reviewed-on: wrenn/wrenn#50
This commit is contained in:
Rafeed M. Bhuiyan
2026-05-24 21:10:37 +00:00
parent 4707f16c76
commit 05ddf62399
203 changed files with 15815 additions and 9344 deletions
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31
internal/sandbox/images.go
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@ -9,6 +9,8 @@ import (
"strconv"
"strings"
"github.com/jackc/pgx/v5/pgtype"
"git.omukk.dev/wrenn/wrenn/internal/layout"
"git.omukk.dev/wrenn/wrenn/pkg/id"
)
@ -29,13 +31,9 @@ func EnsureImageSizes(wrennDir string, targetMB int) error {
}
targetBytes := int64(targetMB) * 1024 * 1024
// Expand the built-in minimal image.
minimalRootfs := layout.TemplateRootfs(wrennDir, id.PlatformTeamID, id.MinimalTemplateID)
if err := expandImage(minimalRootfs, targetBytes, targetMB); err != nil {
return err
}
// Walk teams/{teamDir}/{templateDir}/rootfs.ext4 two levels deep.
// Walk teams/{teamDir}/{templateDir}/rootfs.ext4 two levels deep. The
// built-in system base templates live under teams/{base36(0)}/... so this
// covers them too.
teamsDir := layout.TeamsDir(wrennDir)
teamEntries, err := os.ReadDir(teamsDir)
if err != nil {
@ -104,12 +102,19 @@ func ParseSizeToMB(s string) (int, error) {
}
}
// ShrinkMinimalImage shrinks the built-in minimal rootfs back to its minimum
// size using resize2fs -M. This is the inverse of EnsureImageSizes and should
// be called during graceful shutdown so the image is stored compactly on disk.
func ShrinkMinimalImage(wrennDir string) {
minimalRootfs := layout.TemplateRootfs(wrennDir, id.PlatformTeamID, id.MinimalTemplateID)
shrinkImage(minimalRootfs)
// ShrinkSystemImages shrinks the built-in system base rootfs images back to
// their minimum size using resize2fs -M. This is the inverse of
// EnsureImageSizes and should be called during graceful shutdown so the images
// are stored compactly on disk.
func ShrinkSystemImages(wrennDir string) {
for _, tmplID := range []pgtype.UUID{
id.UbuntuTemplateID,
id.AlpineTemplateID,
id.ArchTemplateID,
id.FedoraTemplateID,
} {
shrinkImage(layout.TemplateRootfs(wrennDir, id.PlatformTeamID, tmplID))
}
}
// shrinkImage shrinks a single rootfs image to its minimum size.