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Track active/passive boot for upgrade workflow (#133)

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* Track active/passive boot for upgrade workflow

Track what are we booting from during upgrade in order to not backup
active into passive if we are booting from passive.

If we are booting from active or recovery the workflow keeps as it was,
backup active into passive, and then move the transition image into
active.

Signed-off-by: Itxaka <itxaka@kairos.io>
This commit is contained in:
Itxaka
2023-09-01 15:19:28 +02:00
committed by GitHub
parent ca4cf5059d
commit 442973526e
4 changed files with 52 additions and 9 deletions
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35
pkg/action/upgrade_test.go
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@@ -149,6 +149,13 @@ var _ = Describe("Runtime Actions", func() {
err = fsutils.MkdirAll(config.Fs, filepath.Join(spec.Active.MountPoint, "etc"), constants.DirPerm)
Expect(err).ShouldNot(HaveOccurred())
err = fsutils.MkdirAll(config.Fs, "/proc", constants.DirPerm)
Expect(err).ShouldNot(HaveOccurred())
// Write proc/cmdline so we can detect what we booted from
err = fs.WriteFile("/proc/cmdline", []byte(constants.ActiveLabel), constants.FilePerm)
Expect(err).ShouldNot(HaveOccurred())
err = fs.WriteFile(
filepath.Join(spec.Active.MountPoint, "etc", "os-release"),
[]byte("GRUB_ENTRY_NAME=TESTOS"),
@@ -161,9 +168,6 @@ var _ = Describe("Runtime Actions", func() {
spec.Recovery.Size = 10
runner.SideEffect = func(command string, args ...string) ([]byte, error) {
if command == "cat" && args[0] == "/proc/cmdline" {
return []byte(constants.ActiveLabel), nil
}
if command == "mv" && args[0] == "-f" && args[1] == activeImg && args[2] == passiveImg {
// we doing backup, do the "move"
source, _ := fs.ReadFile(activeImg)
@@ -359,6 +363,13 @@ var _ = Describe("Runtime Actions", func() {
)
Expect(err).ShouldNot(HaveOccurred())
err = fsutils.MkdirAll(config.Fs, "/proc", constants.DirPerm)
Expect(err).ShouldNot(HaveOccurred())
// Write proc/cmdline so we can detect what we booted from
err = fs.WriteFile("/proc/cmdline", []byte(constants.PassiveLabel), constants.FilePerm)
Expect(err).ShouldNot(HaveOccurred())
spec.Active.Size = 10
spec.Passive.Size = 10
spec.Recovery.Size = 10
@@ -373,6 +384,10 @@ var _ = Describe("Runtime Actions", func() {
_ = fs.WriteFile(activeImg, source, constants.FilePerm)
_ = fs.RemoveAll(spec.Active.File)
}
if command == "mv" && args[0] == "-f" && args[1] == activeImg && args[2] == passiveImg {
// If this command was called then its a complete failure as it tried to copy active into passive
StopTrying("Passive was overwritten").Now()
}
return []byte{}, nil
}
config.Runner = runner
@@ -436,6 +451,13 @@ var _ = Describe("Runtime Actions", func() {
spec.RecoveryUpgrade = true
err = fsutils.MkdirAll(config.Fs, "/proc", constants.DirPerm)
Expect(err).ShouldNot(HaveOccurred())
// Write proc/cmdline so we can detect what we booted from
err = fs.WriteFile("/proc/cmdline", []byte(constants.RecoveryLabel), constants.FilePerm)
Expect(err).ShouldNot(HaveOccurred())
runner.SideEffect = func(command string, args ...string) ([]byte, error) {
if command == "cat" && args[0] == "/proc/cmdline" {
return []byte(constants.RecoveryLabel), nil
@@ -522,6 +544,13 @@ var _ = Describe("Runtime Actions", func() {
spec.RecoveryUpgrade = true
err = fsutils.MkdirAll(config.Fs, "/proc", constants.DirPerm)
Expect(err).ShouldNot(HaveOccurred())
// Write proc/cmdline so we can detect what we booted from
err = fs.WriteFile("/proc/cmdline", []byte(constants.RecoveryLabel), constants.FilePerm)
Expect(err).ShouldNot(HaveOccurred())
runner.SideEffect = func(command string, args ...string) ([]byte, error) {
if command == "cat" && args[0] == "/proc/cmdline" {
return []byte(constants.RecoveryLabel), nil