Files
podman/pkg/util/utils_test.go
Jake Correnti b01a330d37 Use single persistent ssh key for all machines
Changes SSH key behavior such that there is a single persisted key for all
machines across all providers. If there is no key that is located at
`.local/share/containers/podman/machine/` then it is created. The keys are
not deleted when the last machine on the host is removed.

The main motivation for this change is it leads to fewer files created on the
host as a result of vm configuration. Having `n` machines on your system doesn't
result in `2n` machine-related files in `.ssh` on your system anymore.

As a result of ssh keys being persisted by default, the `--save-keys` flag
on `podman machine rm` will no longer be supported.

Signed-off-by: Jake Correnti <jakecorrenti+github@proton.me>
2024-01-04 23:47:49 -05:00

597 lines
12 KiB
Go

package util
import (
"fmt"
"path/filepath"
"testing"
"time"
"github.com/containers/storage/pkg/homedir"
"github.com/containers/storage/pkg/idtools"
ruser "github.com/opencontainers/runc/libcontainer/user"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/stretchr/testify/assert"
)
var (
sliceData = []string{"one", "two", "three", "four"}
)
func BreakInsert(mapping []idtools.IDMap, extension idtools.IDMap) (result []idtools.IDMap) {
result = breakInsert(mapping, extension)
result = sortAndMergeConsecutiveMappings(result)
return result
}
//#####################
func TestBreakInsert1(t *testing.T) {
// extension below mapping
mapping := []idtools.IDMap{
{
ContainerID: 1000,
HostID: 1000,
Size: 1,
},
}
extension := idtools.IDMap{
ContainerID: 2,
HostID: 2,
Size: 1,
}
expectedResult := []idtools.IDMap{
{
ContainerID: 2,
HostID: 2,
Size: 1,
},
{
ContainerID: 1000,
HostID: 1000,
Size: 1,
},
}
result := BreakInsert(mapping, extension)
assert.Equal(t, result, expectedResult)
}
func TestBreakInsert2(t *testing.T) {
// extension below mapping
mapping := []idtools.IDMap{
{
ContainerID: 1000,
HostID: 1001,
Size: 2,
},
}
extension := idtools.IDMap{
ContainerID: 2,
HostID: 3,
Size: 2,
}
expectedResult := []idtools.IDMap{
{
ContainerID: 2,
HostID: 3,
Size: 2,
},
{
ContainerID: 1000,
HostID: 1001,
Size: 2,
},
}
result := BreakInsert(mapping, extension)
assert.Equal(t, expectedResult, result)
}
func TestBreakInsert3(t *testing.T) {
// extension above mapping
mapping := []idtools.IDMap{
{
ContainerID: 2,
HostID: 3,
Size: 2,
},
}
extension := idtools.IDMap{
ContainerID: 1000,
HostID: 1001,
Size: 2,
}
expectedResult := []idtools.IDMap{
{
ContainerID: 2,
HostID: 3,
Size: 2,
},
{
ContainerID: 1000,
HostID: 1001,
Size: 2,
},
}
result := BreakInsert(mapping, extension)
assert.Equal(t, expectedResult, result)
}
func TestBreakInsert4(t *testing.T) {
// extension right below mapping
mapping := []idtools.IDMap{
{
ContainerID: 4,
HostID: 5,
Size: 4,
},
}
extension := idtools.IDMap{
ContainerID: 1,
HostID: 1,
Size: 3,
}
expectedResult := []idtools.IDMap{
{
ContainerID: 1,
HostID: 1,
Size: 3,
},
{
ContainerID: 4,
HostID: 5,
Size: 4,
},
}
result := BreakInsert(mapping, extension)
assert.Equal(t, expectedResult, result)
}
func TestSortAndMergeConsecutiveMappings(t *testing.T) {
// Extension and mapping are consecutive
mapping := []idtools.IDMap{
{
ContainerID: 1,
HostID: 1,
Size: 3,
},
{
ContainerID: 4,
HostID: 4,
Size: 4,
},
}
expectedResult := []idtools.IDMap{
{
ContainerID: 1,
HostID: 1,
Size: 7,
},
}
result := sortAndMergeConsecutiveMappings(mapping)
assert.Equal(t, expectedResult, result)
}
//#####################
func TestParseIDMap(t *testing.T) {
mapSpec := []string{"+100000:@1002:1"}
parentMapping := []ruser.IDMap{
{
ID: int64(20),
ParentID: int64(1002),
Count: 1,
},
}
expectedResult := []idtools.IDMap{
{
ContainerID: 100000,
HostID: 20,
Size: 1,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMapSizeMissing(t *testing.T) {
// Size is 1 if not provided
mapSpec := []string{"+100000:@1002"}
parentMapping := []ruser.IDMap{
{
ID: int64(20),
ParentID: int64(1002),
Count: 1,
},
}
expectedResult := []idtools.IDMap{
{
ContainerID: 100000,
HostID: 20,
Size: 1,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMap2(t *testing.T) {
mapSpec := []string{"0:2000:100000", "+1:100:1"}
parentMapping := []ruser.IDMap(nil)
expectedResult := []idtools.IDMap{
{
ContainerID: 0,
HostID: 2000,
Size: 1,
},
{
ContainerID: 1,
HostID: 100,
Size: 1,
},
{
ContainerID: 2,
HostID: 2002,
Size: 99998,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMap3(t *testing.T) {
mapSpec := []string{"0:0:20", "24:24:6", "+7:1000:2", "+12:2000:3", "+18:3000:7"}
parentMapping := []ruser.IDMap(nil)
expectedResult := []idtools.IDMap{
{
ContainerID: 0,
HostID: 0,
Size: 7,
},
{
ContainerID: 7,
HostID: 1000,
Size: 2,
},
{
ContainerID: 9,
HostID: 9,
Size: 3,
},
{
ContainerID: 12,
HostID: 2000,
Size: 3,
},
{
ContainerID: 15,
HostID: 15,
Size: 3,
},
{
ContainerID: 18,
HostID: 3000,
Size: 7,
},
{
ContainerID: 25,
HostID: 25,
Size: 5,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMap4(t *testing.T) {
mapSpec := []string{"0:0:20", "+10:1:1"}
parentMapping := []ruser.IDMap(nil)
expectedResult := []idtools.IDMap{
{
ContainerID: 0,
HostID: 0,
Size: 1,
},
{
ContainerID: 2,
HostID: 2,
Size: 8,
},
{
ContainerID: 10,
HostID: 1,
Size: 1,
},
{
ContainerID: 11,
HostID: 11,
Size: 9,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMap5(t *testing.T) {
mapSpec := []string{"0:20:10", "15:35:10", "+8:23:16"}
parentMapping := []ruser.IDMap(nil)
expectedResult := []idtools.IDMap{
{
ContainerID: 0,
HostID: 20,
Size: 3,
},
{
ContainerID: 8,
HostID: 23,
Size: 16,
},
{
ContainerID: 24,
HostID: 44,
Size: 1,
},
}
result, err := ParseIDMap(
mapSpec,
"UID",
parentMapping,
)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResult, result)
}
func TestParseIDMapUserGroupFlags(t *testing.T) {
mapSpec := []string{"u1:3:1", "g2:4:2"}
parentMapping := []ruser.IDMap(nil)
expectedResultUser := []idtools.IDMap{
{
ContainerID: 1,
HostID: 3,
Size: 1,
},
}
expectedResultGroup := []idtools.IDMap{
{
ContainerID: 2,
HostID: 4,
Size: 2,
},
}
result, err := ParseIDMap(mapSpec, "UID", parentMapping)
assert.Equal(t, nil, err)
assert.Equal(t, expectedResultUser, result)
result, err = ParseIDMap(mapSpec, "GID", parentMapping)
assert.Equal(t, err, nil)
assert.Equal(t, expectedResultGroup, result)
}
func TestParseAutoIDMap(t *testing.T) {
result, err := parseAutoIDMap("3:4:5", "UID", []ruser.IDMap{})
assert.Equal(t, err, nil)
assert.Equal(t, result, []idtools.IDMap{
{
ContainerID: 3,
HostID: 4,
Size: 5,
},
})
}
func TestParseAutoIDMapRelative(t *testing.T) {
parentMapping := []ruser.IDMap{
{
ID: 0,
ParentID: 1000,
Count: 1,
},
{
ID: 1,
ParentID: 100000,
Count: 65536,
},
}
result, err := parseAutoIDMap("100:@100000:1", "UID", parentMapping)
assert.Equal(t, err, nil)
assert.Equal(t, result, []idtools.IDMap{
{
ContainerID: 100,
HostID: 1,
Size: 1,
},
})
}
func TestFillIDMap(t *testing.T) {
availableRanges := [][2]int{{0, 10}, {10000, 20000}}
idmap := []idtools.IDMap{
{
ContainerID: 1,
HostID: 1000,
Size: 10,
},
{
ContainerID: 30,
HostID: 2000,
Size: 20,
},
}
expectedResult := []idtools.IDMap{
{
ContainerID: 0,
HostID: 0,
Size: 1,
},
{
ContainerID: 1,
HostID: 1000,
Size: 10,
},
{
ContainerID: 11,
HostID: 1,
Size: 9,
},
{
ContainerID: 20,
HostID: 10000,
Size: 10,
},
{
ContainerID: 30,
HostID: 2000,
Size: 20,
},
{
ContainerID: 50,
HostID: 10010,
Size: 9990,
},
}
result := fillIDMap(idmap, availableRanges)
assert.Equal(t, expectedResult, result)
}
func TestGetAvailableIDRanges(t *testing.T) {
all := [][2]int{{0, 30}, {50, 70}}
used := [][2]int{{2, 4}, {25, 55}}
expectedResult := [][2]int{{0, 2}, {4, 25}, {55, 70}}
result := getAvailableIDRanges(all, used)
assert.Equal(t, expectedResult, result)
}
func TestStringInSlice(t *testing.T) {
// string is in the slice
assert.True(t, StringInSlice("one", sliceData))
// string is not in the slice
assert.False(t, StringInSlice("five", sliceData))
// string is not in empty slice
assert.False(t, StringInSlice("one", []string{}))
}
func TestValidateSysctls(t *testing.T) {
strSlice := []string{"net.core.test1=4", "kernel.msgmax=2"}
result, _ := ValidateSysctls(strSlice)
assert.Equal(t, result["net.core.test1"], "4")
}
func TestValidateSysctlBadSysctl(t *testing.T) {
strSlice := []string{"BLAU=BLUE", "GELB^YELLOW"}
_, err := ValidateSysctls(strSlice)
assert.Error(t, err)
}
func TestValidateSysctlBadSysctlWithExtraSpaces(t *testing.T) {
expectedError := "'%s' is invalid, extra spaces found"
// should fail fast on first sysctl
strSlice1 := []string{
"net.ipv4.ping_group_range = 0 0",
"net.ipv4.ping_group_range=0 0 ",
}
_, err := ValidateSysctls(strSlice1)
assert.Error(t, err)
assert.Equal(t, err.Error(), fmt.Sprintf(expectedError, strSlice1[0]))
// should fail on second sysctl
strSlice2 := []string{
"net.ipv4.ping_group_range=0 0",
"net.ipv4.ping_group_range=0 0 ",
}
_, err = ValidateSysctls(strSlice2)
assert.Error(t, err)
assert.Equal(t, err.Error(), fmt.Sprintf(expectedError, strSlice2[1]))
}
func TestGetIdentityPath(t *testing.T) {
name := "p-test"
identityPath := GetIdentityPath(name)
assert.Equal(t, identityPath, filepath.Join(homedir.Get(), ".local", "share", "containers", "podman", "machine", name))
}
func TestCoresToPeriodAndQuota(t *testing.T) {
cores := 1.0
expectedPeriod := DefaultCPUPeriod
expectedQuota := int64(DefaultCPUPeriod)
actualPeriod, actualQuota := CoresToPeriodAndQuota(cores)
assert.Equal(t, actualPeriod, expectedPeriod, "Period does not match")
assert.Equal(t, actualQuota, expectedQuota, "Quota does not match")
}
func TestPeriodAndQuotaToCores(t *testing.T) {
var (
period uint64 = 100000
quota int64 = 50000
expectedCores = 0.5
)
assert.Equal(t, PeriodAndQuotaToCores(period, quota), expectedCores)
}
func TestParseInputTime(t *testing.T) {
tm, err := ParseInputTime("1.5", true)
if err != nil {
t.Errorf("expected error to be nil but was: %v", err)
}
expected, err := time.ParseInLocation(time.RFC3339Nano, "1970-01-01T00:00:01.500000000Z", time.UTC)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, expected, tm)
}
func TestConvertMappings(t *testing.T) {
start := []specs.LinuxIDMapping{
{
ContainerID: 1,
HostID: 2,
Size: 3,
},
{
ContainerID: 4,
HostID: 5,
Size: 6,
},
}
converted := RuntimeSpecToIDtools(start)
convertedBack := IDtoolsToRuntimeSpec(converted)
assert.Equal(t, len(start), len(convertedBack))
for i := range start {
assert.Equal(t, start[i].ContainerID, convertedBack[i].ContainerID)
assert.Equal(t, start[i].HostID, convertedBack[i].HostID)
assert.Equal(t, start[i].Size, convertedBack[i].Size)
}
}