1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
package containerd
import (
"context"
"os"
"path/filepath"
goRuntime "runtime"
"strconv"
"strings"
"github.com/containerd/containerd"
"github.com/containerd/containerd/gc"
"github.com/containerd/containerd/leases"
"github.com/containerd/containerd/platforms"
ptypes "github.com/containerd/containerd/protobuf/types"
"github.com/moby/buildkit/cache"
"github.com/moby/buildkit/cache/metadata"
"github.com/moby/buildkit/executor/containerdexecutor"
"github.com/moby/buildkit/executor/oci"
containerdsnapshot "github.com/moby/buildkit/snapshot/containerd"
"github.com/moby/buildkit/util/leaseutil"
"github.com/moby/buildkit/util/network/netproviders"
"github.com/moby/buildkit/util/winlayers"
"github.com/moby/buildkit/worker/base"
wlabel "github.com/moby/buildkit/worker/label"
ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/pkg/errors"
"golang.org/x/sync/semaphore"
)
type RuntimeInfo = containerdexecutor.RuntimeInfo
// NewWorkerOpt creates a WorkerOpt.
func NewWorkerOpt(
root string,
address, snapshotterName, ns string,
rootless bool,
labels map[string]string,
dns *oci.DNSConfig,
nopt netproviders.Opt,
apparmorProfile string,
selinux bool,
parallelismSem *semaphore.Weighted,
traceSocket string,
runtime *RuntimeInfo,
opts ...containerd.ClientOpt,
) (base.WorkerOpt, error) {
opts = append(opts, containerd.WithDefaultNamespace(ns))
if goRuntime.GOOS == "windows" {
// TODO(profnandaa): once the upstream PR[1] is merged and
// vendored in buildkit, we will remove this block.
// [1] https://github.com/containerd/containerd/pull/9412
address = strings.TrimPrefix(address, "npipe://")
}
client, err := containerd.New(address, opts...)
if err != nil {
return base.WorkerOpt{}, errors.Wrapf(err, "failed to connect client to %q . make sure containerd is running", address)
}
return newContainerd(
root,
client,
snapshotterName,
ns,
rootless,
labels,
dns,
nopt,
apparmorProfile,
selinux,
parallelismSem,
traceSocket,
runtime,
)
}
func newContainerd(root string, client *containerd.Client, snapshotterName, ns string, rootless bool, labels map[string]string, dns *oci.DNSConfig, nopt netproviders.Opt, apparmorProfile string, selinux bool, parallelismSem *semaphore.Weighted, traceSocket string, runtime *RuntimeInfo) (base.WorkerOpt, error) {
if strings.Contains(snapshotterName, "/") {
return base.WorkerOpt{}, errors.Errorf("bad snapshotter name: %q", snapshotterName)
}
name := "containerd-" + snapshotterName
root = filepath.Join(root, name)
if err := os.MkdirAll(root, 0700); err != nil {
return base.WorkerOpt{}, errors.Wrapf(err, "failed to create %s", root)
}
df := client.DiffService()
// TODO: should use containerd daemon instance ID (containerd/containerd#1862)?
id, err := base.ID(root)
if err != nil {
return base.WorkerOpt{}, err
}
serverInfo, err := client.IntrospectionService().Server(context.TODO(), &ptypes.Empty{})
if err != nil {
return base.WorkerOpt{}, err
}
np, npResolvedMode, err := netproviders.Providers(nopt)
if err != nil {
return base.WorkerOpt{}, err
}
hostname, err := os.Hostname()
if err != nil {
hostname = "unknown"
}
xlabels := map[string]string{
wlabel.Executor: "containerd",
wlabel.Snapshotter: snapshotterName,
wlabel.Hostname: hostname,
wlabel.Network: npResolvedMode,
wlabel.SELinuxEnabled: strconv.FormatBool(selinux),
}
if apparmorProfile != "" {
xlabels[wlabel.ApparmorProfile] = apparmorProfile
}
xlabels[wlabel.ContainerdNamespace] = ns
xlabels[wlabel.ContainerdUUID] = serverInfo.UUID
for k, v := range labels {
xlabels[k] = v
}
lm := leaseutil.WithNamespace(client.LeasesService(), ns)
gc := func(ctx context.Context) (gc.Stats, error) {
l, err := lm.Create(ctx)
if err != nil {
return nil, nil
}
return nil, lm.Delete(ctx, leases.Lease{ID: l.ID}, leases.SynchronousDelete)
}
cs := containerdsnapshot.NewContentStore(client.ContentStore(), ns)
resp, err := client.IntrospectionService().Plugins(context.TODO(), []string{"type==io.containerd.runtime.v1", "type==io.containerd.runtime.v2"})
if err != nil {
return base.WorkerOpt{}, errors.Wrap(err, "failed to list runtime plugin")
}
if len(resp.Plugins) == 0 {
return base.WorkerOpt{}, errors.New("failed to find any runtime plugins")
}
var platformSpecs []ocispecs.Platform
for _, plugin := range resp.Plugins {
for _, p := range plugin.Platforms {
// containerd can return platforms that are not normalized
platformSpecs = append(platformSpecs, platforms.Normalize(ocispecs.Platform{
OS: p.OS,
Architecture: p.Architecture,
Variant: p.Variant,
}))
}
}
snap := containerdsnapshot.NewSnapshotter(snapshotterName, client.SnapshotService(snapshotterName), ns, nil)
if err := cache.MigrateV2(
context.TODO(),
filepath.Join(root, "metadata.db"),
filepath.Join(root, "metadata_v2.db"),
cs,
snap,
lm,
); err != nil {
return base.WorkerOpt{}, err
}
md, err := metadata.NewStore(filepath.Join(root, "metadata_v2.db"))
if err != nil {
return base.WorkerOpt{}, err
}
opt := base.WorkerOpt{
ID: id,
Labels: xlabels,
MetadataStore: md,
NetworkProviders: np,
Executor: containerdexecutor.New(client, root, "", np, dns, apparmorProfile, selinux, traceSocket, rootless, runtime),
Snapshotter: snap,
ContentStore: cs,
Applier: winlayers.NewFileSystemApplierWithWindows(cs, df),
Differ: winlayers.NewWalkingDiffWithWindows(cs, df),
ImageStore: client.ImageService(),
Platforms: platformSpecs,
LeaseManager: lm,
GarbageCollect: gc,
ParallelismSem: parallelismSem,
MountPoolRoot: filepath.Join(root, "cachemounts"),
}
return opt, nil
}
|
