summaryrefslogtreecommitdiff
path: root/pkg/api/handlers/libpod/pods.go
blob: f5700579ba30c49460002a15fd634ea8f31615be (plain)
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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
package libpod

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strings"

	"github.com/containers/libpod/cmd/podman/shared"
	"github.com/containers/libpod/cmd/podman/shared/parse"
	"github.com/containers/libpod/libpod"
	"github.com/containers/libpod/libpod/define"
	"github.com/containers/libpod/pkg/api/handlers"
	"github.com/containers/libpod/pkg/api/handlers/utils"
	"github.com/containers/libpod/pkg/util"
	"github.com/gorilla/mux"
	"github.com/gorilla/schema"
	"github.com/pkg/errors"
)

func PodCreate(w http.ResponseWriter, r *http.Request) {
	var (
		runtime = r.Context().Value("runtime").(*libpod.Runtime)
		options []libpod.PodCreateOption
		err     error
	)
	labels := make(map[string]string)
	input := handlers.PodCreateConfig{}
	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
		return
	}
	if len(input.InfraCommand) > 0 || len(input.InfraImage) > 0 {
		utils.Error(w, "Something went wrong.", http.StatusInternalServerError,
			errors.New("infra-command and infra-image are not implemented yet"))
		return
	}
	// TODO long term we should break the following out of adapter and into libpod proper
	// so that the cli and api can share the creation of a pod with the same options
	if len(input.CGroupParent) > 0 {
		options = append(options, libpod.WithPodCgroupParent(input.CGroupParent))
	}

	if len(input.Labels) > 0 {
		labels, err = parse.GetAllLabels([]string{}, input.Labels)
		if err != nil {
			utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
			return
		}
	}

	if len(labels) != 0 {
		options = append(options, libpod.WithPodLabels(labels))
	}

	if len(input.Name) > 0 {
		options = append(options, libpod.WithPodName(input.Name))
	}

	if len(input.Hostname) > 0 {
		options = append(options, libpod.WithPodHostname(input.Hostname))
	}

	if input.Infra {
		// TODO infra-image and infra-command are not supported in the libpod API yet.  Will fix
		// when implemented in libpod
		options = append(options, libpod.WithInfraContainer())
		sharedNamespaces := shared.DefaultKernelNamespaces
		if len(input.Share) > 0 {
			sharedNamespaces = input.Share
		}
		nsOptions, err := shared.GetNamespaceOptions(strings.Split(sharedNamespaces, ","))
		if err != nil {
			utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
			return
		}
		options = append(options, nsOptions...)
	}

	if len(input.Publish) > 0 {
		portBindings, err := shared.CreatePortBindings(input.Publish)
		if err != nil {
			utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
			return
		}
		options = append(options, libpod.WithInfraContainerPorts(portBindings))

	}
	// always have containers use pod cgroups
	// User Opt out is not yet supported
	options = append(options, libpod.WithPodCgroups())

	pod, err := runtime.NewPod(r.Context(), options...)
	if err != nil {
		http_code := http.StatusInternalServerError
		if errors.Cause(err) == define.ErrPodExists {
			http_code = http.StatusConflict
		}
		utils.Error(w, "Something went wrong.", http_code, err)
		return
	}
	utils.WriteResponse(w, http.StatusCreated, handlers.IDResponse{ID: pod.ID()})
}

func Pods(w http.ResponseWriter, r *http.Request) {
	var (
		runtime        = r.Context().Value("runtime").(*libpod.Runtime)
		podInspectData []*libpod.PodInspect
	)
	decoder := r.Context().Value("decoder").(*schema.Decoder)
	query := struct {
		Filters map[string][]string `schema:"filters"`
	}{
		// override any golang type defaults
	}
	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
		utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
			errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
		return
	}

	if len(query.Filters) > 0 {
		utils.Error(w, "filters are not implemented yet", http.StatusInternalServerError, define.ErrNotImplemented)
		return
	}

	pods, err := runtime.GetAllPods()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	for _, pod := range pods {
		data, err := pod.Inspect()
		if err != nil {
			utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
			return
		}
		podInspectData = append(podInspectData, data)
	}
	utils.WriteResponse(w, http.StatusOK, podInspectData)
}

func PodInspect(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	podData, err := pod.Inspect()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, podData)
}

func PodStop(w http.ResponseWriter, r *http.Request) {
	var (
		stopError error
		runtime   = r.Context().Value("runtime").(*libpod.Runtime)
		decoder   = r.Context().Value("decoder").(*schema.Decoder)
	)
	query := struct {
		Timeout int `schema:"t"`
	}{
		// override any golang type defaults
	}

	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
		utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
			errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
		return
	}
	allContainersStopped := true
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}

	// TODO we need to implement a pod.State/Status in libpod internal so libpod api
	// users dont have to run through all containers.
	podContainers, err := pod.AllContainers()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}

	for _, con := range podContainers {
		containerState, err := con.State()
		if err != nil {
			utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
			return
		}
		if containerState == define.ContainerStateRunning {
			allContainersStopped = false
			break
		}
	}
	if allContainersStopped {
		utils.WriteResponse(w, http.StatusNotModified, "")
		return
	}

	if query.Timeout > 0 {
		_, stopError = pod.StopWithTimeout(r.Context(), false, query.Timeout)
	} else {
		_, stopError = pod.Stop(r.Context(), false)
	}
	if stopError != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, "")
}

func PodStart(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	allContainersRunning := true
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}

	// TODO we need to implement a pod.State/Status in libpod internal so libpod api
	// users dont have to run through all containers.
	podContainers, err := pod.AllContainers()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}

	for _, con := range podContainers {
		containerState, err := con.State()
		if err != nil {
			utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
			return
		}
		if containerState != define.ContainerStateRunning {
			allContainersRunning = false
			break
		}
	}
	if allContainersRunning {
		utils.WriteResponse(w, http.StatusNotModified, "")
		return
	}
	if _, err := pod.Start(r.Context()); err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, "")
}

func PodDelete(w http.ResponseWriter, r *http.Request) {
	var (
		runtime = r.Context().Value("runtime").(*libpod.Runtime)
		decoder = r.Context().Value("decoder").(*schema.Decoder)
	)
	query := struct {
		Force bool `schema:"force"`
	}{
		// override any golang type defaults
	}

	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
		utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
			errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
		return
	}
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	if err := runtime.RemovePod(r.Context(), pod, true, query.Force); err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusNoContent, "")
}

func PodRestart(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	_, err = pod.Restart(r.Context())
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, "")
}

func PodPrune(w http.ResponseWriter, r *http.Request) {
	var (
		runtime = r.Context().Value("runtime").(*libpod.Runtime)
	)
	pruned, err := runtime.PrunePods()
	if err != nil {
		utils.InternalServerError(w, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, pruned)
}

func PodPause(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	_, err = pod.Pause()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusNoContent, "")
}

func PodUnpause(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	_, err = pod.Unpause()
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, "")
}

func PodKill(w http.ResponseWriter, r *http.Request) {
	var (
		runtime = r.Context().Value("runtime").(*libpod.Runtime)
		decoder = r.Context().Value("decoder").(*schema.Decoder)
		signal  = "SIGKILL"
	)
	query := struct {
		signal string `schema:"signal"`
	}{
		// override any golang type defaults
	}
	if err := decoder.Decode(&query, r.URL.Query()); err != nil {
		utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
			errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
		return
	}
	muxVars := mux.Vars(r)
	if _, found := muxVars["signal"]; found {
		signal = query.signal
	}

	sig, err := util.ParseSignal(signal)
	if err != nil {
		utils.InternalServerError(w, errors.Wrapf(err, "unable to parse signal value"))
	}
	name := utils.GetName(r)
	pod, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	podStates, err := pod.Status()
	if err != nil {
		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
		return
	}
	hasRunning := false
	for _, s := range podStates {
		if s == define.ContainerStateRunning {
			hasRunning = true
			break
		}
	}
	if !hasRunning {
		msg := fmt.Sprintf("Container %s is not running", pod.ID())
		utils.Error(w, msg, http.StatusConflict, errors.Errorf("cannot kill a pod with no running containers: %s", pod.ID()))
		return
	}
	_, err = pod.Kill(uint(sig))
	if err != nil {
		utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
		return
	}
	utils.WriteResponse(w, http.StatusOK, "")
}

func PodExists(w http.ResponseWriter, r *http.Request) {
	runtime := r.Context().Value("runtime").(*libpod.Runtime)
	name := utils.GetName(r)
	_, err := runtime.LookupPod(name)
	if err != nil {
		utils.PodNotFound(w, name, err)
		return
	}
	utils.WriteResponse(w, http.StatusNoContent, "")
}