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Copy pathsnapstate_install_test.go
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snapstate_install_test.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016-2024 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package snapstate_test
import (
"context"
"errors"
"fmt"
"os"
"os/exec"
"path/filepath"
"sort"
"strings"
"time"
. "gopkg.in/check.v1"
"gopkg.in/tomb.v2"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/asserts/assertstest"
"github.com/snapcore/snapd/asserts/snapasserts"
"github.com/snapcore/snapd/boot"
"github.com/snapcore/snapd/client"
"github.com/snapcore/snapd/dirs"
"github.com/snapcore/snapd/gadget"
"github.com/snapcore/snapd/interfaces"
"github.com/snapcore/snapd/interfaces/ifacetest"
"github.com/snapcore/snapd/osutil"
"github.com/snapcore/snapd/overlord"
"github.com/snapcore/snapd/overlord/assertstate"
"github.com/snapcore/snapd/overlord/auth"
"github.com/snapcore/snapd/overlord/restart"
"github.com/snapcore/snapd/snapdenv"
"github.com/snapcore/snapd/store/storetest"
// So it registers Configure.
_ "github.com/snapcore/snapd/overlord/configstate"
"github.com/snapcore/snapd/overlord/configstate/config"
"github.com/snapcore/snapd/overlord/hookstate"
"github.com/snapcore/snapd/overlord/ifacestate/ifacerepo"
"github.com/snapcore/snapd/overlord/snapstate"
"github.com/snapcore/snapd/overlord/snapstate/backend"
"github.com/snapcore/snapd/overlord/snapstate/sequence"
"github.com/snapcore/snapd/overlord/snapstate/snapstatetest"
"github.com/snapcore/snapd/overlord/state"
"github.com/snapcore/snapd/release"
"github.com/snapcore/snapd/snap"
"github.com/snapcore/snapd/snap/naming"
"github.com/snapcore/snapd/snap/snaptest"
"github.com/snapcore/snapd/store"
"github.com/snapcore/snapd/testutil"
)
func expectedDoInstallTasks(typ snap.Type, opts, compOpts, discards int, startTasks []string, components []string, filterOut map[string]bool) []string {
if !release.OnClassic || opts&isHybrid != 0 {
switch typ {
case snap.TypeGadget:
opts |= updatesGadget
case snap.TypeKernel:
opts |= updatesGadgetAssets
case snap.TypeSnapd:
opts |= updatesBootConfig
}
}
var tasksAfterDownload, tasksBeforePreRefreshHook, tasksAfterLinkSnap, tasksAfterPostOpHook, tasksBeforeDiscard []string
for range components {
compOpts |= compOptMultiCompInstall
if opts&localSnap != 0 {
compOpts |= compOptIsLocal
}
if opts&unlinkBefore != 0 {
compOpts |= compOptIsActive | compOptDuringSnapRefresh
}
beforeMount, beforeLink, link, hooksAndAfter, discard := expectedComponentInstallTasksSplit(compOpts)
tasksAfterDownload = append(tasksAfterDownload, beforeMount...)
tasksBeforePreRefreshHook = append(tasksBeforePreRefreshHook, beforeLink...)
tasksAfterLinkSnap = append(tasksAfterLinkSnap, link...)
tasksAfterPostOpHook = append(tasksAfterPostOpHook, hooksAndAfter...)
tasksBeforeDiscard = append(tasksBeforeDiscard, discard...)
}
if startTasks == nil {
switch {
case opts&localSnap != 0:
startTasks = []string{
"prerequisites",
"prepare-snap",
}
startTasks = append(startTasks, tasksAfterDownload...)
startTasks = append(startTasks, "mount-snap")
case opts&localRevision != 0:
startTasks = []string{
"prerequisites",
"prepare-snap",
}
startTasks = append(startTasks, tasksAfterDownload...)
default:
startTasks = []string{
"prerequisites",
"download-snap",
"validate-snap",
}
startTasks = append(startTasks, tasksAfterDownload...)
startTasks = append(startTasks, "mount-snap")
}
}
expected := startTasks
expected = append(expected, tasksBeforePreRefreshHook...)
if opts&unlinkBefore != 0 {
expected = append(expected,
"run-hook[pre-refresh]",
"stop-snap-services",
"remove-aliases",
)
}
if opts&unlinkBefore != 0 {
expected = append(expected, "unlink-current-snap")
}
if opts&updatesGadgetAssets != 0 && opts&needsKernelSetup != 0 {
expected = append(expected, "prepare-kernel-snap")
}
if opts&(updatesGadget|updatesGadgetAssets) != 0 {
expected = append(expected, "update-gadget-assets")
}
if opts&updatesGadget != 0 {
expected = append(expected, "update-gadget-cmdline")
}
expected = append(expected, "copy-snap-data")
expected = append(expected, "setup-profiles", "link-snap")
expected = append(expected, tasksAfterLinkSnap...)
expected = append(expected, "auto-connect")
expected = append(expected,
"set-auto-aliases",
"setup-aliases")
if opts&preferInstalled != 0 {
expected = append(expected, "prefer-aliases")
}
if opts&updatesBootConfig != 0 {
expected = append(expected, "update-managed-boot-config")
}
if opts&unlinkBefore != 0 {
expected = append(expected, "run-hook[post-refresh]")
} else {
expected = append(expected, "run-hook[install]")
}
if opts&updatesGadgetAssets != 0 && opts&needsKernelSetup != 0 {
expected = append(expected, "discard-old-kernel-snap-setup")
}
expected = append(expected, tasksAfterPostOpHook...)
if opts&unlinkBefore == 0 && opts&(noConfigure|runCoreConfigure) == 0 {
expected = append(expected, "run-hook[default-configure]")
}
expected = append(expected, "start-snap-services")
for i := 0; i < discards; i++ {
expected = append(expected,
"clear-snap",
"discard-snap",
)
}
if opts&cleanupAfter != 0 {
expected = append(expected,
"cleanup",
)
}
if opts&noConfigure == 0 {
expected = append(expected,
"run-hook[configure]",
)
}
expected = append(expected,
"run-hook[check-health]",
)
filtered := make([]string, 0, len(expected))
for _, k := range expected {
if !filterOut[k] {
filtered = append(filtered, k)
}
}
return filtered
}
func verifyInstallTasks(c *C, typ snap.Type, opts, discards int, ts *state.TaskSet) {
verifyInstallTasksWithComponents(c, typ, opts, discards, nil, ts)
}
func verifyInstallTasksWithComponents(c *C, typ snap.Type, opts, discards int, components []string, ts *state.TaskSet) {
kinds := taskKinds(ts.Tasks())
expected := expectedDoInstallTasks(typ, opts, 0, discards, nil, components, nil)
c.Assert(kinds, DeepEquals, expected)
if opts&noLastBeforeModificationsEdge == 0 {
te := ts.MaybeEdge(snapstate.LastBeforeLocalModificationsEdge)
c.Assert(te, NotNil)
if len(components) == 0 {
if opts&localSnap != 0 {
c.Assert(te.Kind(), Equals, "prepare-snap")
} else {
c.Assert(te.Kind(), Equals, "validate-snap")
}
} else {
if opts&compOptIsUnasserted == 0 {
c.Assert(te.Kind(), Equals, "validate-component")
} else {
c.Assert(te.Kind(), Equals, "prepare-component")
}
}
}
te, err := ts.Edge(snapstate.SnapSetupEdge)
c.Assert(err, IsNil)
c.Assert(te.Has("component-setup-tasks"), Equals, true)
var count int
for _, t := range ts.Tasks() {
switch t.Kind() {
case "prepare-component", "download-component":
if t.Change() == nil {
// Add to a change so we can call snapstate.TaskComponentSetup
chg := t.State().NewChange("install", "install...")
chg.AddAll(ts)
}
compsup, _, err := snapstate.TaskComponentSetup(t)
c.Assert(err, IsNil)
c.Check(compsup.CompSideInfo.Component.ComponentName, Equals, components[count])
count++
case "setup-profiles":
c.Assert(t.Has("component-setup-task"), Equals, false)
c.Assert(t.Has("component-setup"), Equals, false)
}
}
c.Check(count, Equals, len(components), Commentf("expected %d components, found %d", len(components), count))
}
func (s *snapmgrTestSuite) TestInstallDevModeConfinementFiltering(c *C) {
s.state.Lock()
defer s.state.Unlock()
// if a snap is devmode, you can't install it without --devmode
opts := &snapstate.RevisionOptions{Channel: "channel-for-devmode"}
_, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{})
c.Assert(err, ErrorMatches, `.* requires devmode or confinement override`)
// if a snap is devmode, you *can* install it with --devmode
_, err = snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{DevMode: true})
c.Assert(err, IsNil)
// if a model assertion says that it's okay to install a snap (via seeding)
// with devmode then you can install it with --devmode
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{ApplySnapDevMode: true})
c.Assert(err, IsNil)
// and with this, snapstate for the install tasks does not have
// ApplySnapDevMode set, but does have DevMode set now.
task0 := ts.Tasks()[0]
snapsup, err := snapstate.TaskSnapSetup(task0)
c.Assert(err, IsNil, Commentf("%#v", task0))
c.Assert(snapsup.InstanceName(), Equals, "some-snap")
c.Assert(snapsup.DevMode, Equals, true)
c.Assert(snapsup.ApplySnapDevMode, Equals, false)
// if a snap is *not* devmode, you can still install it with --devmode
opts.Channel = "channel-for-strict"
_, err = snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{DevMode: true})
c.Assert(err, IsNil)
}
func (s *snapmgrTestSuite) TestInstallClassicConfinementFiltering(c *C) {
restore := maybeMockClassicSupport(c)
defer restore()
s.state.Lock()
defer s.state.Unlock()
// if a snap is classic, you can't install it without --classic
opts := &snapstate.RevisionOptions{Channel: "channel-for-classic"}
_, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{})
c.Assert(err, ErrorMatches, `.* requires classic confinement`)
// if a snap is classic, you *can* install it with --classic
_, err = snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{Classic: true})
c.Assert(err, IsNil)
// if a snap is *not* classic, but can install it with --classic which gets ignored
opts.Channel = "channel-for-strict"
_, err = snapstate.Install(context.Background(), s.state, "some-snap", opts, s.user.ID, snapstate.Flags{Classic: true})
c.Assert(err, IsNil)
}
func (s *snapmgrTestSuite) TestInstallTasks(c *C) {
s.state.Lock()
defer s.state.Unlock()
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, 0, snapstate.Flags{})
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeApp, 0, 0, ts)
c.Assert(s.state.TaskCount(), Equals, len(ts.Tasks()))
}
func (s *snapmgrTestSuite) TestInstallAlreadyInstalled(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "some-snap", &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "some-snap", Revision: snap.R(7)},
}),
Current: snap.R(7),
SnapType: "app",
})
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
_, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, 0, snapstate.Flags{})
c.Assert(err, NotNil)
c.Check(err, ErrorMatches, `snap "some-snap" is already installed`)
c.Check(err, FitsTypeOf, &snap.AlreadyInstalledError{})
}
func (s *snapmgrTestSuite) TestInstallInvalidOptions(c *C) {
s.state.Lock()
defer s.state.Unlock()
t := snapstate.StoreInstallGoal(snapstate.StoreSnap{
InstanceName: "some-snap",
RevOpts: snapstate.RevisionOptions{
CohortKey: "cohort",
Revision: snap.R(7),
},
})
_, _, err := snapstate.InstallOne(context.Background(), s.state, t, snapstate.Options{})
c.Assert(err, NotNil)
c.Check(err, ErrorMatches, `invalid revision options for snap \"some-snap\": cannot specify revision and cohort`)
}
func (s *snapmgrTestSuite) TestInstallTaskEdgesForPreseeding(c *C) {
s.state.Lock()
defer s.state.Unlock()
mockSnap := makeTestSnap(c, `name: some-snap
version: 1.0
`)
restorePreseeding := snapdenv.MockPreseeding(true)
defer restorePreseeding()
for _, skipConfig := range []bool{false, true} {
ts, _, err := snapstate.InstallPath(s.state, &snap.SideInfo{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(8)}, mockSnap, "", "", snapstate.Flags{SkipConfigure: skipConfig}, nil)
c.Assert(err, IsNil)
te, err := ts.Edge(snapstate.BeginEdge)
c.Assert(err, IsNil)
c.Check(te.Kind(), Equals, "prerequisites")
te, err = ts.Edge(snapstate.BeforeHooksEdge)
c.Assert(err, IsNil)
c.Check(te.Kind(), Equals, "setup-aliases")
te, err = ts.Edge(snapstate.HooksEdge)
c.Assert(err, IsNil)
c.Assert(te.Kind(), Equals, "run-hook")
var hsup *hookstate.HookSetup
c.Assert(te.Get("hook-setup", &hsup), IsNil)
c.Check(hsup.Hook, Equals, "install")
c.Check(hsup.Snap, Equals, "some-snap")
te, err = ts.Edge(snapstate.EndEdge)
c.Assert(err, IsNil)
if skipConfig {
c.Check(te.Kind(), Equals, "start-snap-services")
} else {
c.Check(te.Kind(), Equals, "run-hook")
}
}
}
func (s *snapmgrTestSuite) TestInstallSnapdSnapTypeOnClassic(c *C) {
s.state.Lock()
defer s.state.Unlock()
// remove snapd snap added for snapmgrBaseTest
snapstate.Set(s.state, "snapd", nil)
// setup a classic model so the device context says we are on classic
defer snapstatetest.MockDeviceModel(ClassicModel())()
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.Install(context.Background(), s.state, "snapd", opts, 0, snapstate.Flags{})
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeSnapd, noConfigure, 0, ts)
snapsup, err := snapstate.TaskSnapSetup(ts.Tasks()[0])
c.Assert(err, IsNil)
c.Check(snapsup.Type, Equals, snap.TypeSnapd)
}
func (s *snapmgrTestSuite) TestInstallSnapdSnapTypeOnCore(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
// remove snapd snap added for snapmgrBaseTest
snapstate.Set(s.state, "snapd", nil)
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.Install(context.Background(), s.state, "snapd", opts, 0, snapstate.Flags{})
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeSnapd, noConfigure, 0, ts)
snapsup, err := snapstate.TaskSnapSetup(ts.Tasks()[0])
c.Assert(err, IsNil)
c.Check(snapsup.Type, Equals, snap.TypeSnapd)
}
func (s *snapmgrTestSuite) TestInstallCohortTasks(c *C) {
s.state.Lock()
defer s.state.Unlock()
opts := &snapstate.RevisionOptions{Channel: "some-channel", CohortKey: "what"}
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, 0, snapstate.Flags{})
c.Assert(err, IsNil)
snapsup, err := snapstate.TaskSnapSetup(ts.Tasks()[0])
c.Assert(err, IsNil)
c.Check(snapsup.CohortKey, Equals, "what")
verifyInstallTasks(c, snap.TypeApp, 0, 0, ts)
c.Assert(s.state.TaskCount(), Equals, len(ts.Tasks()))
}
func (s *snapmgrTestSuite) TestInstallPreferTasks(c *C) {
s.state.Lock()
defer s.state.Unlock()
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
flags := snapstate.Flags{Prefer: true}
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, 0, flags)
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeApp, preferInstalled, 0, ts)
c.Assert(s.state.TaskCount(), Equals, len(ts.Tasks()))
}
func (s *snapmgrTestSuite) TestInstallWithDeviceContext(c *C) {
s.state.Lock()
defer s.state.Unlock()
// unset the global store, it will need to come via the device context
snapstate.ReplaceStore(s.state, nil)
deviceCtx := &snapstatetest.TrivialDeviceContext{
CtxStore: s.fakeStore,
DeviceModel: &asserts.Model{},
}
prqt := new(testPrereqTracker)
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.InstallWithDeviceContext(context.Background(), s.state, "some-snap", opts, 0, snapstate.Flags{}, prqt, deviceCtx, "")
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeApp, 0, 0, ts)
c.Assert(s.state.TaskCount(), Equals, len(ts.Tasks()))
c.Assert(prqt.infos, HasLen, 1)
c.Check(prqt.infos[0].SnapName(), Equals, "some-snap")
c.Check(prqt.missingProviderContentTagsCalls, Equals, 1)
}
func (s *snapmgrTestSuite) TestInstallPathWithDeviceContext(c *C) {
s.state.Lock()
defer s.state.Unlock()
// unset the global store, it will need to come via the device context
snapstate.ReplaceStore(s.state, nil)
deviceCtx := &snapstatetest.TrivialDeviceContext{
CtxStore: s.fakeStore,
DeviceModel: &asserts.Model{},
}
si := &snap.SideInfo{RealName: "some-snap", Revision: snap.R(7)}
mockSnap := makeTestSnap(c, `name: some-snap
version: 1.0
`)
prqt := new(testPrereqTracker)
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.InstallPathWithDeviceContext(s.state, si, mockSnap, "some-snap", opts, 0, snapstate.Flags{}, prqt, deviceCtx, "")
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeApp, localSnap, 0, ts)
c.Assert(s.state.TaskCount(), Equals, len(ts.Tasks()))
c.Assert(prqt.infos, HasLen, 1)
c.Check(prqt.infos[0].SnapName(), Equals, "some-snap")
c.Check(prqt.missingProviderContentTagsCalls, Equals, 1)
}
func (s *snapmgrTestSuite) TestInstallPathWithDeviceContextBadFile(c *C) {
s.state.Lock()
defer s.state.Unlock()
// unset the global store, it will need to come via the device context
snapstate.ReplaceStore(s.state, nil)
deviceCtx := &snapstatetest.TrivialDeviceContext{CtxStore: s.fakeStore}
si := &snap.SideInfo{RealName: "some-snap", Revision: snap.R(7)}
path := filepath.Join(c.MkDir(), "some-snap_7.snap")
err := os.WriteFile(path, []byte(""), 0644)
c.Assert(err, IsNil)
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.InstallPathWithDeviceContext(s.state, si, path, "some-snap", opts, 0, snapstate.Flags{}, nil, deviceCtx, "")
c.Assert(err, ErrorMatches, `cannot open snap file: cannot process snap or snapdir: cannot read ".*/some-snap_7.snap": EOF`)
c.Assert(ts, IsNil)
}
func (s *snapmgrTestSuite) TestInstallWithDeviceContextNoRemodelConflict(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
// remove snapd snap added for snapmgrBaseTest
snapstate.Set(s.state, "snapd", nil)
// unset the global store, it will need to come via the device context
snapstate.ReplaceStore(s.state, nil)
tugc := s.state.NewTask("update-managed-boot-config", "update managed boot config")
chg := s.state.NewChange("remodel", "remodel")
chg.AddTask(tugc)
deviceCtx := &snapstatetest.TrivialDeviceContext{CtxStore: s.fakeStore, DeviceModel: &asserts.Model{}}
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.InstallWithDeviceContext(context.Background(), s.state, "brand-gadget", opts, 0, snapstate.Flags{}, nil, deviceCtx, chg.ID())
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeGadget, 0, 0, ts)
ts, err = snapstate.InstallWithDeviceContext(context.Background(), s.state, "snapd", opts, 0, snapstate.Flags{}, nil, deviceCtx, chg.ID())
c.Assert(err, IsNil)
verifyInstallTasks(c, snap.TypeSnapd, noConfigure, 0, ts)
}
func (s *snapmgrTestSuite) TestInstallWithDeviceContextRemodelConflict(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
// unset the global store, it will need to come via the device context
snapstate.ReplaceStore(s.state, nil)
tugc := s.state.NewTask("update-managed-boot-config", "update managed boot config")
chg := s.state.NewChange("remodel", "remodel")
chg.AddTask(tugc)
deviceCtx := &snapstatetest.TrivialDeviceContext{CtxStore: s.fakeStore, DeviceModel: &asserts.Model{}}
opts := &snapstate.RevisionOptions{Channel: "some-channel"}
ts, err := snapstate.InstallWithDeviceContext(context.Background(), s.state, "brand-gadget", opts, 0, snapstate.Flags{}, nil, deviceCtx, "")
c.Assert(err.Error(), Equals, "remodeling in progress, no other changes allowed until this is done")
c.Assert(ts, IsNil)
}
func (s *snapmgrTestSuite) TestInstallHookNotRunForInstalledSnap(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "some-snap", &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "some-snap", Revision: snap.R(7)},
}),
Current: snap.R(7),
SnapType: "app",
})
mockSnap := makeTestSnap(c, `name: some-snap
version: 1.0
epoch: 1*
`)
ts, _, err := snapstate.InstallPath(s.state, &snap.SideInfo{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(8)}, mockSnap, "", "", snapstate.Flags{}, nil)
c.Assert(err, IsNil)
runHooks := tasksWithKind(ts, "run-hook")
// no install hook task
c.Assert(taskKinds(runHooks), DeepEquals, []string{
"run-hook[pre-refresh]",
"run-hook[post-refresh]",
"run-hook[configure]",
"run-hook[check-health]",
})
}
func (s *snapmgrTestSuite) TestInstallFailsOnDisabledSnap(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapst := &snapstate.SnapState{
Active: false,
TrackingChannel: "channel/stable",
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(2)}}),
Current: snap.R(2),
SnapType: "app",
}
snapsup := snapstate.SnapSetup{SideInfo: &snap.SideInfo{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(1)}}
_, err := snapstate.DoInstall(s.state, snapst, snapsup, nil, 0, "", nil)
c.Assert(err, ErrorMatches, `cannot update disabled snap "some-snap"`)
}
func inUseCheck(snap.Type) (boot.InUseFunc, error) {
return func(string, snap.Revision) bool {
return false
}, nil
}
func (s *snapmgrTestSuite) TestInstallFailsOnBusySnap(c *C) {
s.state.Lock()
defer s.state.Unlock()
// With the refresh-app-awareness feature enabled.
tr := config.NewTransaction(s.state)
tr.Set("core", "experimental.refresh-app-awareness", true)
tr.Commit()
// With a snap state indicating a snap is already installed.
snapst := &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(1)},
}),
Current: snap.R(1),
SnapType: "app",
}
snapstate.Set(s.state, "some-snap", snapst)
// With a snap info indicating it has an application called "app"
snapstate.MockSnapReadInfo(func(name string, si *snap.SideInfo) (*snap.Info, error) {
if name != "some-snap" {
return s.fakeBackend.ReadInfo(name, si)
}
info := &snap.Info{SuggestedName: name, SideInfo: *si, SnapType: snap.TypeApp}
info.Apps = map[string]*snap.AppInfo{
"app": {Snap: info, Name: "app"},
}
return info, nil
})
// mock that "some-snap" has an app and that this app has pids running
restore := snapstate.MockPidsOfSnap(func(instanceName string) (map[string][]int, error) {
c.Assert(instanceName, Equals, "some-snap")
return map[string][]int{
"snap.some-snap.app": {1234},
}, nil
})
defer restore()
// Attempt to install revision 2 of the snap.
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(2)},
}
// And observe that we cannot refresh because the snap is busy.
_, err := snapstate.DoInstall(s.state, snapst, snapsup, nil, 0, "", inUseCheck)
c.Assert(err, ErrorMatches, `snap "some-snap" has running apps \(app\), pids: 1234`)
// Don't record time since it wasn't a failed refresh
err = snapstate.Get(s.state, "some-snap", snapst)
c.Assert(err, IsNil)
c.Check(snapst.RefreshInhibitedTime, IsNil)
}
func (s *snapmgrTestSuite) TestInstallWithIgnoreRunningProceedsOnBusySnap(c *C) {
s.state.Lock()
defer s.state.Unlock()
// With the refresh-app-awareness feature enabled.
tr := config.NewTransaction(s.state)
tr.Set("core", "experimental.refresh-app-awareness", true)
tr.Commit()
// With a snap state indicating a snap is already installed.
snapst := &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "pkg", SnapID: "pkg-id", Revision: snap.R(1)},
}),
Current: snap.R(1),
SnapType: "app",
}
snapstate.Set(s.state, "pkg", snapst)
// With a snap info indicating it has an application called "app"
snapstate.MockSnapReadInfo(func(name string, si *snap.SideInfo) (*snap.Info, error) {
if name != "pkg" {
return s.fakeBackend.ReadInfo(name, si)
}
info := &snap.Info{SuggestedName: name, SideInfo: *si, SnapType: snap.TypeApp}
info.Apps = map[string]*snap.AppInfo{
"app": {Snap: info, Name: "app"},
}
return info, nil
})
// With an app belonging to the snap that is apparently running.
restore := snapstate.MockPidsOfSnap(func(instanceName string) (map[string][]int, error) {
c.Assert(instanceName, Equals, "pkg")
return map[string][]int{
"snap.pkg.app": {1234},
}, nil
})
defer restore()
var called bool
restore = snapstate.MockExcludeFromRefreshAppAwareness(func(t snap.Type) bool {
called = true
c.Check(t, Equals, snap.TypeApp)
return false
})
defer restore()
// Attempt to install revision 2 of the snap, with the IgnoreRunning flag set.
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{RealName: "pkg", SnapID: "pkg-id", Revision: snap.R(2)},
Flags: snapstate.Flags{IgnoreRunning: true},
Type: "app",
}
// And observe that we do so despite the running app.
_, err := snapstate.DoInstall(s.state, snapst, snapsup, nil, 0, "", inUseCheck)
c.Assert(err, IsNil)
// The state confirms that the refresh operation was not postponed.
err = snapstate.Get(s.state, "pkg", snapst)
c.Assert(err, IsNil)
c.Check(snapst.RefreshInhibitedTime, IsNil)
c.Check(called, Equals, true)
}
func (s *snapmgrTestSuite) TestInstallDespiteBusySnap(c *C) {
s.state.Lock()
defer s.state.Unlock()
// With the refresh-app-awareness feature enabled.
tr := config.NewTransaction(s.state)
tr.Set("core", "experimental.refresh-app-awareness", true)
tr.Commit()
// With a snap state indicating a snap is already installed and it failed
// to refresh over a week ago. Use UTC and Round to have predictable
// behaviour across time-zones and with enough precision loss to be
// compatible with the serialization format.
var longAgo = time.Now().UTC().Round(time.Second).Add(-time.Hour * 24 * 8)
snapst := &snapstate.SnapState{
Active: true,
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(1)},
}),
Current: snap.R(1),
SnapType: "app",
RefreshInhibitedTime: &longAgo,
}
snapstate.Set(s.state, "some-snap", snapst)
// With a snap info indicating it has an application called "app"
snapstate.MockSnapReadInfo(func(name string, si *snap.SideInfo) (*snap.Info, error) {
if name != "some-snap" {
return s.fakeBackend.ReadInfo(name, si)
}
info := &snap.Info{SuggestedName: name, SideInfo: *si, SnapType: snap.TypeApp}
info.Apps = map[string]*snap.AppInfo{
"app": {Snap: info, Name: "app"},
}
return info, nil
})
// And with cgroup information indicating the app has a process with pid 1234.
restore := snapstate.MockPidsOfSnap(func(instanceName string) (map[string][]int, error) {
c.Assert(instanceName, Equals, "some-snap")
return map[string][]int{
"snap.some-snap.some-app": {1234},
}, nil
})
defer restore()
// Attempt to install revision 2 of the snap.
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{RealName: "some-snap", SnapID: "some-snap-id", Revision: snap.R(2)},
}
// And observe that refresh occurred regardless of the running process.
_, err := snapstate.DoInstall(s.state, snapst, snapsup, nil, 0, "", inUseCheck)
c.Assert(err, IsNil)
}
func (s *snapmgrTestSuite) TestInstallFailsOnSystem(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapsup := snapstate.SnapSetup{SideInfo: &snap.SideInfo{RealName: "system", SnapID: "some-snap-id", Revision: snap.R(1)}}
_, err := snapstate.DoInstall(s.state, nil, snapsup, nil, 0, "", nil)
c.Assert(err, ErrorMatches, `cannot install reserved snap name 'system'`)
}
func (s *snapmgrTestSuite) TestDoInstallChannelDefault(c *C) {
s.state.Lock()
defer s.state.Unlock()
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", nil, 0, snapstate.Flags{})
c.Assert(err, IsNil)
var snapsup snapstate.SnapSetup
err = ts.Tasks()[0].Get("snap-setup", &snapsup)
c.Assert(err, IsNil)
c.Check(snapsup.Channel, Equals, "stable")
}
func (s *snapmgrTestSuite) TestInstallRevision(c *C) {
s.state.Lock()
defer s.state.Unlock()
opts := &snapstate.RevisionOptions{Revision: snap.R(7)}
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", opts, 0, snapstate.Flags{})
c.Assert(err, IsNil)
var snapsup snapstate.SnapSetup
err = ts.Tasks()[0].Get("snap-setup", &snapsup)
c.Assert(err, IsNil)
c.Check(snapsup.Revision(), Equals, snap.R(7))
}
func (s *snapmgrTestSuite) TestInstallTooEarly(c *C) {
s.state.Lock()
defer s.state.Unlock()
s.state.Set("seeded", nil)
_, err := snapstate.Install(context.Background(), s.state, "some-snap", nil, 0, snapstate.Flags{})
c.Check(err, testutil.ErrorIs, &snapstate.ChangeConflictError{})
c.Assert(err, ErrorMatches, `.*too early for operation, device not yet seeded or device model not acknowledged`)
}
func (s *snapmgrTestSuite) TestInstallConflict(c *C) {
s.state.Lock()
defer s.state.Unlock()
ts, err := snapstate.Install(context.Background(), s.state, "some-snap", nil, 0, snapstate.Flags{})
c.Assert(err, IsNil)
// need a change to make the tasks visible
s.state.NewChange("install", "...").AddAll(ts)
_, err = snapstate.Install(context.Background(), s.state, "some-snap", nil, 0, snapstate.Flags{})
c.Check(err, FitsTypeOf, &snapstate.ChangeConflictError{})
c.Assert(err, ErrorMatches, `snap "some-snap" has "install" change in progress`)
}
func (s *snapmgrTestSuite) TestGadgetInstallConflict(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
tugc := s.state.NewTask("update-managed-boot-config", "update managed boot config")
chg := s.state.NewChange("snapd-update", "snapd update")
chg.AddTask(tugc)
_, err := snapstate.Install(context.Background(), s.state, "brand-gadget",
nil, 0, snapstate.Flags{})
c.Assert(err, ErrorMatches, "boot config is being updated, no change in kernel command line is allowed meanwhile")
}
func (s *snapmgrTestSuite) TestInstallNoRestartBoundaries(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
r := snapstatetest.MockDeviceModel(DefaultModel())
defer r()
snapsup := snapstate.SnapSetup{
SideInfo: &snap.SideInfo{
RealName: "brand-gadget",
SnapID: "brand-gadget",
Revision: snap.R(2),
},
Type: snap.TypeGadget,
}
// Ensure that restart boundaries were set on 'link-snap' as a part of doInstall
// when the flag noRestartBoundaries is not set
ts1, err := snapstate.DoInstall(s.state, &snapstate.SnapState{}, snapsup, nil, 0, "", inUseCheck)
c.Assert(err, IsNil)
linkSnap1 := ts1.MaybeEdge(snapstate.MaybeRebootEdge)
c.Assert(linkSnap1, NotNil)
var boundary restart.RestartBoundaryDirection
c.Check(linkSnap1.Get("restart-boundary", &boundary), IsNil)
// Ensure that restart boundaries are not set when we do provide the noRestartBoundaries flag
ts2, err := snapstate.DoInstall(s.state, &snapstate.SnapState{}, snapsup, nil, snapstate.NoRestartBoundaries, "", inUseCheck)
c.Assert(err, IsNil)
linkSnap2 := ts2.MaybeEdge(snapstate.MaybeRebootEdge)
c.Assert(linkSnap2, NotNil)
c.Check(linkSnap2.Get("restart-boundary", &boundary), ErrorMatches, `no state entry for key "restart-boundary"`)
}
func (s *snapmgrTestSuite) TestInstallSnapdConflict(c *C) {
restore := release.MockOnClassic(false)
defer restore()
s.state.Lock()
defer s.state.Unlock()
// remove snapd snap added for snapmgrBaseTest
snapstate.Set(s.state, "snapd", nil)
tugc := s.state.NewTask("update-gadget-cmdline", "update gadget cmdline")
chg := s.state.NewChange("optional-kernel-cmdline", "optional kernel cmdline")
chg.AddTask(tugc)
_, err := snapstate.Install(context.Background(), s.state, "snapd",
nil, 0, snapstate.Flags{})
c.Assert(err, ErrorMatches, "kernel command line already being updated, no additional changes for it allowed meanwhile")
}
func (s *snapmgrTestSuite) TestInstallAliasConflict(c *C) {
s.state.Lock()
defer s.state.Unlock()
snapstate.Set(s.state, "otherfoosnap", &snapstate.SnapState{
Sequence: snapstatetest.NewSequenceFromSnapSideInfos([]*snap.SideInfo{
{RealName: "otherfoosnap", Revision: snap.R(30)},
}),
Current: snap.R(30),
Active: true,
Aliases: map[string]*snapstate.AliasTarget{
"foo.bar": {Manual: "bar"},
},
SnapType: "app",
})
_, err := snapstate.Install(context.Background(), s.state, "foo", nil, 0, snapstate.Flags{})
c.Assert(err, ErrorMatches, `snap "foo" command namespace conflicts with alias "foo\.bar" for "otherfoosnap" snap`)
}
func (s *snapmgrTestSuite) TestInstallStrictIgnoresClassic(c *C) {
restore := maybeMockClassicSupport(c)
defer restore()
s.state.Lock()