1use std::{collections::HashMap, path::PathBuf};
2
3use async_trait::async_trait;
4use serde::{Deserialize, Deserializer, Serialize, de};
5use util::command::Command;
6
7use crate::{
8 command_json::evaluate_json_command, devcontainer_api::DevContainerError,
9 devcontainer_json::MountDefinition,
10};
11
12#[derive(Debug, Deserialize, Serialize, Eq, PartialEq)]
13#[serde(rename_all = "PascalCase")]
14pub(crate) struct DockerPs {
15 #[serde(alias = "ID")]
16 pub(crate) id: String,
17}
18
19#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq)]
20#[serde(rename_all = "PascalCase")]
21pub(crate) struct DockerState {
22 pub(crate) running: bool,
23}
24
25#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq)]
26#[serde(rename_all = "PascalCase")]
27pub(crate) struct DockerInspect {
28 pub(crate) id: String,
29 pub(crate) config: DockerInspectConfig,
30 pub(crate) mounts: Option<Vec<DockerInspectMount>>,
31 pub(crate) state: Option<DockerState>,
32}
33
34#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
35pub(crate) struct DockerConfigLabels {
36 #[serde(
37 default,
38 rename = "devcontainer.metadata",
39 deserialize_with = "deserialize_metadata"
40 )]
41 pub(crate) metadata: Option<Vec<HashMap<String, serde_json_lenient::Value>>>,
42}
43
44#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq)]
45#[serde(rename_all = "PascalCase")]
46pub(crate) struct DockerInspectConfig {
47 #[serde(default, deserialize_with = "deserialize_nullable_labels")]
48 pub(crate) labels: DockerConfigLabels,
49 #[serde(rename = "User")]
50 pub(crate) image_user: Option<String>,
51 #[serde(default)]
52 pub(crate) env: Vec<String>,
53}
54
55impl DockerInspectConfig {
56 pub(crate) fn env_as_map(&self) -> Result<HashMap<String, String>, DevContainerError> {
57 let mut map = HashMap::new();
58 for env_var in &self.env {
59 let Some((key, value)) = env_var.split_once('=') else {
60 log::warn!("Skipping environment variable without a value: {env_var}");
61 continue;
62 };
63 map.insert(key.to_string(), value.to_string());
64 }
65 Ok(map)
66 }
67}
68
69#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq)]
70#[serde(rename_all = "PascalCase")]
71pub(crate) struct DockerInspectMount {
72 pub(crate) source: String,
73 pub(crate) destination: String,
74}
75
76#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
77pub(crate) struct DockerComposeServiceBuild {
78 #[serde(skip_serializing_if = "Option::is_none")]
79 pub(crate) context: Option<String>,
80 #[serde(skip_serializing_if = "Option::is_none")]
81 pub(crate) dockerfile: Option<String>,
82 #[serde(skip_serializing_if = "Option::is_none")]
83 pub(crate) target: Option<String>,
84 #[serde(skip_serializing_if = "Option::is_none")]
85 pub(crate) args: Option<HashMap<String, String>>,
86 #[serde(skip_serializing_if = "Option::is_none")]
87 pub(crate) additional_contexts: Option<HashMap<String, String>>,
88}
89
90#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
91pub(crate) struct DockerComposeServicePort {
92 #[serde(deserialize_with = "deserialize_string_or_int")]
93 pub(crate) target: String,
94 #[serde(deserialize_with = "deserialize_string_or_int")]
95 pub(crate) published: String,
96 #[serde(skip_serializing_if = "Option::is_none")]
97 pub(crate) mode: Option<String>,
98 #[serde(skip_serializing_if = "Option::is_none")]
99 pub(crate) protocol: Option<String>,
100 #[serde(skip_serializing_if = "Option::is_none")]
101 pub(crate) host_ip: Option<String>,
102 #[serde(skip_serializing_if = "Option::is_none")]
103 pub(crate) app_protocol: Option<String>,
104 #[serde(skip_serializing_if = "Option::is_none")]
105 pub(crate) name: Option<String>,
106}
107
108fn deserialize_string_or_int<'de, D>(deserializer: D) -> Result<String, D::Error>
109where
110 D: serde::Deserializer<'de>,
111{
112 use serde::Deserialize;
113
114 #[derive(Deserialize)]
115 #[serde(untagged)]
116 enum StringOrInt {
117 String(String),
118 Int(u32),
119 }
120
121 match StringOrInt::deserialize(deserializer)? {
122 StringOrInt::String(s) => Ok(s),
123 StringOrInt::Int(b) => Ok(b.to_string()),
124 }
125}
126
127#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
128pub(crate) struct DockerComposeService {
129 pub(crate) image: Option<String>,
130 #[serde(skip_serializing_if = "Option::is_none")]
131 pub(crate) entrypoint: Option<Vec<String>>,
132 #[serde(skip_serializing_if = "Option::is_none")]
133 pub(crate) cap_add: Option<Vec<String>>,
134 #[serde(skip_serializing_if = "Option::is_none")]
135 pub(crate) security_opt: Option<Vec<String>>,
136 #[serde(
137 skip_serializing_if = "Option::is_none",
138 default,
139 deserialize_with = "deserialize_labels"
140 )]
141 pub(crate) labels: Option<HashMap<String, String>>,
142 #[serde(skip_serializing_if = "Option::is_none")]
143 pub(crate) build: Option<DockerComposeServiceBuild>,
144 #[serde(skip_serializing_if = "Option::is_none")]
145 pub(crate) privileged: Option<bool>,
146 #[serde(default, skip_serializing_if = "Vec::is_empty")]
147 pub(crate) volumes: Vec<MountDefinition>,
148 #[serde(skip_serializing_if = "Option::is_none")]
149 pub(crate) env_file: Option<Vec<String>>,
150 #[serde(default, skip_serializing_if = "Vec::is_empty")]
151 pub(crate) ports: Vec<DockerComposeServicePort>,
152 #[serde(skip_serializing_if = "Option::is_none")]
153 pub(crate) network_mode: Option<String>,
154 #[serde(
155 default,
156 skip_serializing_if = "Vec::is_empty",
157 deserialize_with = "deserialize_nullable_vec"
158 )]
159 pub(crate) command: Vec<String>,
160}
161
162#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
163pub(crate) struct DockerComposeVolume {
164 pub(crate) name: String,
165}
166
167#[derive(Debug, Clone, Deserialize, Serialize, Eq, PartialEq, Default)]
168pub(crate) struct DockerComposeConfig {
169 #[serde(skip_serializing_if = "Option::is_none")]
170 pub(crate) name: Option<String>,
171 pub(crate) services: HashMap<String, DockerComposeService>,
172 #[serde(default)]
173 pub(crate) volumes: HashMap<String, DockerComposeVolume>,
174}
175
176pub(crate) struct Docker {
177 docker_cli: String,
178 has_buildx: bool,
179}
180
181impl DockerInspect {
182 pub(crate) fn is_running(&self) -> bool {
183 self.state.as_ref().map_or(false, |s| s.running)
184 }
185}
186
187impl Docker {
188 pub(crate) async fn new(docker_cli: &str) -> Self {
189 let has_buildx = if docker_cli == "podman" {
190 false
191 } else {
192 let output = Command::new(docker_cli)
193 .args(["buildx", "version"])
194 .output()
195 .await;
196 output.map(|o| o.status.success()).unwrap_or(false)
197 };
198 if !has_buildx && docker_cli != "podman" {
199 log::info!(
200 "docker buildx not found; dev container builds will use the scratch-image fallback"
201 );
202 }
203 Self {
204 docker_cli: docker_cli.to_string(),
205 has_buildx,
206 }
207 }
208
209 fn is_podman(&self) -> bool {
210 self.docker_cli == "podman"
211 }
212
213 async fn pull_image(&self, image: &String) -> Result<(), DevContainerError> {
214 let mut command = Command::new(&self.docker_cli);
215 command.args(&["pull", "--", image]);
216
217 let output = command.output().await.map_err(|e| {
218 log::error!("Error pulling image: {e}");
219 DevContainerError::ResourceFetchFailed
220 })?;
221
222 if !output.status.success() {
223 let stderr = String::from_utf8_lossy(&output.stderr);
224 log::error!("Non-success result from docker pull: {stderr}");
225 return Err(DevContainerError::ResourceFetchFailed);
226 }
227 Ok(())
228 }
229
230 fn create_docker_query_containers(&self, filters: Vec<String>) -> Command {
231 let mut command = Command::new(&self.docker_cli);
232 command.args(&["ps", "-a"]);
233
234 for filter in filters {
235 command.arg("--filter");
236 command.arg(filter);
237 }
238 command.arg("--format={{ json . }}");
239 command
240 }
241
242 fn create_docker_inspect(&self, id: &str) -> Command {
243 let mut command = Command::new(&self.docker_cli);
244 command.args(&["inspect", "--format={{json . }}", id]);
245 command
246 }
247
248 fn create_docker_compose_config_command(&self, config_files: &Vec<PathBuf>) -> Command {
249 let mut command = Command::new(&self.docker_cli);
250 command.arg("compose");
251 for file_path in config_files {
252 command.args(&["-f", &file_path.display().to_string()]);
253 }
254 command.args(&["config", "--format", "json"]);
255 command
256 }
257}
258
259#[async_trait]
260impl DockerClient for Docker {
261 async fn inspect(&self, id: &String) -> Result<DockerInspect, DevContainerError> {
262 // Try to pull the image, continue on failure; Image may be local only, id a reference to a running container
263 self.pull_image(id).await.ok();
264
265 let command = self.create_docker_inspect(id);
266
267 let Some(docker_inspect): Option<DockerInspect> = evaluate_json_command(command).await?
268 else {
269 log::error!("Docker inspect produced no deserializable output");
270 return Err(DevContainerError::CommandFailed(self.docker_cli.clone()));
271 };
272 Ok(docker_inspect)
273 }
274
275 async fn get_docker_compose_config(
276 &self,
277 config_files: &Vec<PathBuf>,
278 ) -> Result<Option<DockerComposeConfig>, DevContainerError> {
279 let command = self.create_docker_compose_config_command(config_files);
280 evaluate_json_command(command).await
281 }
282
283 async fn docker_compose_build(
284 &self,
285 config_files: &Vec<PathBuf>,
286 project_name: &str,
287 ) -> Result<(), DevContainerError> {
288 let mut command = Command::new(&self.docker_cli);
289 if !self.is_podman() {
290 command.env("DOCKER_BUILDKIT", "1");
291 }
292 command.args(&["compose", "--project-name", project_name]);
293 for docker_compose_file in config_files {
294 command.args(&["-f", &docker_compose_file.display().to_string()]);
295 }
296 command.arg("build");
297
298 let output = command.output().await.map_err(|e| {
299 log::error!("Error running docker compose up: {e}");
300 DevContainerError::CommandFailed(command.get_program().display().to_string())
301 })?;
302
303 if !output.status.success() {
304 let stderr = String::from_utf8_lossy(&output.stderr);
305 log::error!("Non-success status from docker compose up: {}", stderr);
306 return Err(DevContainerError::CommandFailed(
307 command.get_program().display().to_string(),
308 ));
309 }
310
311 Ok(())
312 }
313 async fn run_docker_exec(
314 &self,
315 container_id: &str,
316 remote_folder: &str,
317 user: &str,
318 env: &HashMap<String, String>,
319 inner_command: Command,
320 ) -> Result<(), DevContainerError> {
321 let mut command = Command::new(&self.docker_cli);
322
323 command.args(&["exec", "-w", remote_folder, "-u", user]);
324
325 for (k, v) in env.iter() {
326 command.arg("-e");
327 let env_declaration = format!("{}={}", k, v);
328 command.arg(&env_declaration);
329 }
330
331 command.arg(container_id);
332
333 command.arg("sh");
334
335 let mut inner_program_script: Vec<String> =
336 vec![inner_command.get_program().display().to_string()];
337 let mut args: Vec<String> = inner_command
338 .get_args()
339 .map(|arg| arg.display().to_string())
340 .collect();
341 inner_program_script.append(&mut args);
342 command.args(&["-c", &inner_program_script.join(" ")]);
343
344 let output = command.output().await.map_err(|e| {
345 log::error!("Error running command {e} in container exec");
346 DevContainerError::ContainerNotValid(container_id.to_string())
347 })?;
348 if !output.status.success() {
349 let std_err = String::from_utf8_lossy(&output.stderr);
350 log::error!("Command produced a non-successful output. StdErr: {std_err}");
351 }
352 let std_out = String::from_utf8_lossy(&output.stdout);
353 log::debug!("Command output:\n {std_out}");
354
355 Ok(())
356 }
357 async fn start_container(&self, id: &str) -> Result<(), DevContainerError> {
358 let mut command = Command::new(&self.docker_cli);
359
360 command.args(&["start", id]);
361
362 let output = command.output().await.map_err(|e| {
363 log::error!("Error running docker start: {e}");
364 DevContainerError::CommandFailed(command.get_program().display().to_string())
365 })?;
366
367 if !output.status.success() {
368 let stderr = String::from_utf8_lossy(&output.stderr);
369 log::error!("Non-success status from docker start: {stderr}");
370 return Err(DevContainerError::CommandFailed(
371 command.get_program().display().to_string(),
372 ));
373 }
374
375 Ok(())
376 }
377
378 async fn find_process_by_filters(
379 &self,
380 filters: Vec<String>,
381 ) -> Result<Option<DockerPs>, DevContainerError> {
382 let command = self.create_docker_query_containers(filters);
383 evaluate_json_command(command).await
384 }
385
386 fn docker_cli(&self) -> String {
387 self.docker_cli.clone()
388 }
389
390 fn supports_compose_buildkit(&self) -> bool {
391 self.has_buildx
392 }
393}
394
395#[async_trait]
396pub(crate) trait DockerClient {
397 async fn inspect(&self, id: &String) -> Result<DockerInspect, DevContainerError>;
398 async fn get_docker_compose_config(
399 &self,
400 config_files: &Vec<PathBuf>,
401 ) -> Result<Option<DockerComposeConfig>, DevContainerError>;
402 async fn docker_compose_build(
403 &self,
404 config_files: &Vec<PathBuf>,
405 project_name: &str,
406 ) -> Result<(), DevContainerError>;
407 async fn run_docker_exec(
408 &self,
409 container_id: &str,
410 remote_folder: &str,
411 user: &str,
412 env: &HashMap<String, String>,
413 inner_command: Command,
414 ) -> Result<(), DevContainerError>;
415 async fn start_container(&self, id: &str) -> Result<(), DevContainerError>;
416 async fn find_process_by_filters(
417 &self,
418 filters: Vec<String>,
419 ) -> Result<Option<DockerPs>, DevContainerError>;
420 fn supports_compose_buildkit(&self) -> bool;
421 /// This operates as an escape hatch for more custom uses of the docker API.
422 /// See DevContainerManifest::create_docker_build as an example
423 fn docker_cli(&self) -> String;
424}
425
426fn deserialize_labels<'de, D>(deserializer: D) -> Result<Option<HashMap<String, String>>, D::Error>
427where
428 D: Deserializer<'de>,
429{
430 struct LabelsVisitor;
431
432 impl<'de> de::Visitor<'de> for LabelsVisitor {
433 type Value = Option<HashMap<String, String>>;
434
435 fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
436 formatter.write_str("a sequence of strings or a map of string key-value pairs")
437 }
438
439 fn visit_seq<A>(self, seq: A) -> Result<Self::Value, A::Error>
440 where
441 A: de::SeqAccess<'de>,
442 {
443 let values = Vec::<String>::deserialize(de::value::SeqAccessDeserializer::new(seq))?;
444
445 Ok(Some(
446 values
447 .iter()
448 .filter_map(|v| {
449 let (key, value) = v.split_once('=')?;
450 Some((key.to_string(), value.to_string()))
451 })
452 .collect(),
453 ))
454 }
455
456 fn visit_map<M>(self, map: M) -> Result<Self::Value, M::Error>
457 where
458 M: de::MapAccess<'de>,
459 {
460 HashMap::<String, String>::deserialize(de::value::MapAccessDeserializer::new(map))
461 .map(|v| Some(v))
462 }
463
464 fn visit_none<E>(self) -> Result<Self::Value, E>
465 where
466 E: de::Error,
467 {
468 Ok(None)
469 }
470
471 fn visit_unit<E>(self) -> Result<Self::Value, E>
472 where
473 E: de::Error,
474 {
475 Ok(None)
476 }
477 }
478
479 deserializer.deserialize_any(LabelsVisitor)
480}
481
482fn deserialize_nullable_vec<'de, D, T>(deserializer: D) -> Result<Vec<T>, D::Error>
483where
484 D: Deserializer<'de>,
485 T: Deserialize<'de>,
486{
487 Option::<Vec<T>>::deserialize(deserializer).map(|opt| opt.unwrap_or_default())
488}
489
490fn deserialize_nullable_labels<'de, D>(deserializer: D) -> Result<DockerConfigLabels, D::Error>
491where
492 D: Deserializer<'de>,
493{
494 Option::<DockerConfigLabels>::deserialize(deserializer).map(|opt| opt.unwrap_or_default())
495}
496
497fn deserialize_metadata<'de, D>(
498 deserializer: D,
499) -> Result<Option<Vec<HashMap<String, serde_json_lenient::Value>>>, D::Error>
500where
501 D: Deserializer<'de>,
502{
503 let s: Option<String> = Option::deserialize(deserializer)?;
504 match s {
505 Some(json_string) => {
506 // The devcontainer metadata label can be either a JSON array (e.g. from
507 // image-based devcontainers) or a single JSON object (e.g. from
508 // docker-compose-based devcontainers created by the devcontainer CLI).
509 // Handle both formats.
510 let parsed: Vec<HashMap<String, serde_json_lenient::Value>> =
511 serde_json_lenient::from_str(&json_string).or_else(|_| {
512 let single: HashMap<String, serde_json_lenient::Value> =
513 serde_json_lenient::from_str(&json_string).map_err(|e| {
514 log::error!("Error deserializing metadata: {e}");
515 serde::de::Error::custom(e)
516 })?;
517 Ok(vec![single])
518 })?;
519 Ok(Some(parsed))
520 }
521 None => Ok(None),
522 }
523}
524
525#[cfg(test)]
526mod test {
527 use std::{
528 collections::HashMap,
529 ffi::OsStr,
530 process::{ExitStatus, Output},
531 };
532
533 use crate::{
534 command_json::deserialize_json_output,
535 devcontainer_json::MountDefinition,
536 docker::{
537 Docker, DockerComposeConfig, DockerComposeService, DockerComposeServicePort,
538 DockerComposeVolume, DockerInspect, DockerPs,
539 },
540 };
541
542 #[test]
543 fn should_parse_simple_env_var() {
544 let config = super::DockerInspectConfig {
545 labels: super::DockerConfigLabels { metadata: None },
546 image_user: None,
547 env: vec!["KEY=value".to_string()],
548 };
549
550 let map = config.env_as_map().unwrap();
551 assert_eq!(map.get("KEY").unwrap(), "value");
552 }
553
554 #[test]
555 fn should_parse_env_var_with_equals_in_value() {
556 let config = super::DockerInspectConfig {
557 labels: super::DockerConfigLabels { metadata: None },
558 image_user: None,
559 env: vec!["COMPLEX=key=val other>=1.0".to_string()],
560 };
561
562 let map = config.env_as_map().unwrap();
563 assert_eq!(map.get("COMPLEX").unwrap(), "key=val other>=1.0");
564 }
565
566 #[test]
567 fn should_parse_database_url_with_equals_in_query_string() {
568 let config = super::DockerInspectConfig {
569 labels: super::DockerConfigLabels { metadata: None },
570 image_user: None,
571 env: vec![
572 "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin".to_string(),
573 "TEST_DATABASE_URL=postgres://postgres:postgres@db:5432/mydb?sslmode=disable"
574 .to_string(),
575 ],
576 };
577
578 let map = config.env_as_map().unwrap();
579 assert_eq!(
580 map.get("TEST_DATABASE_URL").unwrap(),
581 "postgres://postgres:postgres@db:5432/mydb?sslmode=disable"
582 );
583 }
584
585 #[test]
586 fn should_skip_env_var_without_equals() {
587 let config = super::DockerInspectConfig {
588 labels: super::DockerConfigLabels { metadata: None },
589 image_user: None,
590 env: vec![
591 "VALID_KEY=valid_value".to_string(),
592 "NO_EQUALS_VAR".to_string(),
593 "ANOTHER_VALID=value".to_string(),
594 ],
595 };
596
597 let map = config.env_as_map().unwrap();
598 assert_eq!(map.len(), 2);
599 assert_eq!(map.get("VALID_KEY").unwrap(), "valid_value");
600 assert_eq!(map.get("ANOTHER_VALID").unwrap(), "value");
601 assert!(!map.contains_key("NO_EQUALS_VAR"));
602 }
603
604 #[test]
605 fn should_parse_simple_label() {
606 let json = r#"{"volumes": [], "labels": ["com.example.key=value"]}"#;
607 let service: DockerComposeService = serde_json_lenient::from_str(json).unwrap();
608 let labels = service.labels.unwrap();
609 assert_eq!(labels.get("com.example.key").unwrap(), "value");
610 }
611
612 #[test]
613 fn should_parse_label_with_equals_in_value() {
614 let json = r#"{"volumes": [], "labels": ["com.example.key=value=with=equals"]}"#;
615 let service: DockerComposeService = serde_json_lenient::from_str(json).unwrap();
616 let labels = service.labels.unwrap();
617 assert_eq!(labels.get("com.example.key").unwrap(), "value=with=equals");
618 }
619
620 #[test]
621 fn should_create_docker_inspect_command() {
622 let docker = Docker {
623 docker_cli: "docker".to_string(),
624 has_buildx: false,
625 };
626 let given_id = "given_docker_id";
627
628 let command = docker.create_docker_inspect(given_id);
629
630 assert_eq!(
631 command.get_args().collect::<Vec<&OsStr>>(),
632 vec![
633 OsStr::new("inspect"),
634 OsStr::new("--format={{json . }}"),
635 OsStr::new(given_id)
636 ]
637 )
638 }
639
640 #[test]
641 fn should_deserialize_docker_ps_with_filters() {
642 // First, deserializes empty
643 let empty_output = Output {
644 status: ExitStatus::default(),
645 stderr: vec![],
646 stdout: String::from("").into_bytes(),
647 };
648
649 let result: Option<DockerPs> = deserialize_json_output(empty_output).unwrap();
650
651 assert!(result.is_none());
652
653 let full_output = Output {
654 status: ExitStatus::default(),
655 stderr: vec![],
656 stdout: String::from(r#"
657 {
658 "Command": "\"/bin/sh -c 'echo Co…\"",
659 "CreatedAt": "2026-02-04 15:44:21 -0800 PST",
660 "ID": "abdb6ab59573",
661 "Image": "mcr.microsoft.com/devcontainers/base:ubuntu",
662 "Labels": "desktop.docker.io/mounts/0/Source=/somepath/cli,desktop.docker.io/mounts/0/SourceKind=hostFile,desktop.docker.io/mounts/0/Target=/workspaces/cli,desktop.docker.io/ports.scheme=v2,dev.containers.features=common,dev.containers.id=base-ubuntu,dev.containers.release=v0.4.24,dev.containers.source=https://github.com/devcontainers/images,dev.containers.timestamp=Fri, 30 Jan 2026 16:52:34 GMT,dev.containers.variant=noble,devcontainer.config_file=/somepath/cli/.devcontainer/dev_container_2/devcontainer.json,devcontainer.local_folder=/somepath/cli,devcontainer.metadata=[{\"id\":\"ghcr.io/devcontainers/features/common-utils:2\"},{\"id\":\"ghcr.io/devcontainers/features/git:1\",\"customizations\":{\"vscode\":{\"settings\":{\"github.copilot.chat.codeGeneration.instructions\":[{\"text\":\"This dev container includes an up-to-date version of Git, built from source as needed, pre-installed and available on the `PATH`.\"}]}}}},{\"remoteUser\":\"vscode\"}],org.opencontainers.image.ref.name=ubuntu,org.opencontainers.image.version=24.04,version=2.1.6",
663 "LocalVolumes": "0",
664 "Mounts": "/host_mnt/User…",
665 "Names": "objective_haslett",
666 "Networks": "bridge",
667 "Platform": {
668 "architecture": "arm64",
669 "os": "linux"
670 },
671 "Ports": "",
672 "RunningFor": "47 hours ago",
673 "Size": "0B",
674 "State": "running",
675 "Status": "Up 47 hours"
676 }
677 "#).into_bytes(),
678 };
679
680 let result: Option<DockerPs> = deserialize_json_output(full_output).unwrap();
681
682 assert!(result.is_some());
683 let result = result.unwrap();
684 assert_eq!(result.id, "abdb6ab59573".to_string());
685
686 // Podman variant (Id, not ID)
687 let full_output = Output {
688 status: ExitStatus::default(),
689 stderr: vec![],
690 stdout: String::from(r#"
691 {
692 "Command": "\"/bin/sh -c 'echo Co…\"",
693 "CreatedAt": "2026-02-04 15:44:21 -0800 PST",
694 "Id": "abdb6ab59573",
695 "Image": "mcr.microsoft.com/devcontainers/base:ubuntu",
696 "Labels": "desktop.docker.io/mounts/0/Source=/somepath/cli,desktop.docker.io/mounts/0/SourceKind=hostFile,desktop.docker.io/mounts/0/Target=/workspaces/cli,desktop.docker.io/ports.scheme=v2,dev.containers.features=common,dev.containers.id=base-ubuntu,dev.containers.release=v0.4.24,dev.containers.source=https://github.com/devcontainers/images,dev.containers.timestamp=Fri, 30 Jan 2026 16:52:34 GMT,dev.containers.variant=noble,devcontainer.config_file=/somepath/cli/.devcontainer/dev_container_2/devcontainer.json,devcontainer.local_folder=/somepath/cli,devcontainer.metadata=[{\"id\":\"ghcr.io/devcontainers/features/common-utils:2\"},{\"id\":\"ghcr.io/devcontainers/features/git:1\",\"customizations\":{\"vscode\":{\"settings\":{\"github.copilot.chat.codeGeneration.instructions\":[{\"text\":\"This dev container includes an up-to-date version of Git, built from source as needed, pre-installed and available on the `PATH`.\"}]}}}},{\"remoteUser\":\"vscode\"}],org.opencontainers.image.ref.name=ubuntu,org.opencontainers.image.version=24.04,version=2.1.6",
697 "LocalVolumes": "0",
698 "Mounts": "/host_mnt/User…",
699 "Names": "objective_haslett",
700 "Networks": "bridge",
701 "Platform": {
702 "architecture": "arm64",
703 "os": "linux"
704 },
705 "Ports": "",
706 "RunningFor": "47 hours ago",
707 "Size": "0B",
708 "State": "running",
709 "Status": "Up 47 hours"
710 }
711 "#).into_bytes(),
712 };
713
714 let result: Option<DockerPs> = deserialize_json_output(full_output).unwrap();
715
716 assert!(result.is_some());
717 let result = result.unwrap();
718 assert_eq!(result.id, "abdb6ab59573".to_string());
719 }
720
721 #[test]
722 fn should_deserialize_object_metadata_from_docker_compose_container() {
723 // The devcontainer CLI writes metadata as a bare JSON object (not an array)
724 // when there is only one metadata entry (e.g. docker-compose with no features).
725 // See https://github.com/devcontainers/cli/issues/1054
726 let given_config = r#"
727 {
728 "Id": "dc4e7b8ff4bf",
729 "Config": {
730 "Labels": {
731 "devcontainer.metadata": "{\"remoteUser\":\"ubuntu\"}"
732 }
733 }
734 }
735 "#;
736 let config = serde_json_lenient::from_str::<DockerInspect>(given_config).unwrap();
737
738 assert!(config.config.labels.metadata.is_some());
739 let metadata = config.config.labels.metadata.unwrap();
740 assert_eq!(metadata.len(), 1);
741 assert!(metadata[0].contains_key("remoteUser"));
742 assert_eq!(metadata[0]["remoteUser"], "ubuntu");
743 }
744
745 #[test]
746 fn should_deserialize_docker_compose_config() {
747 let given_config = r#"
748 {
749 "name": "devcontainer",
750 "networks": {
751 "default": {
752 "name": "devcontainer_default",
753 "ipam": {}
754 }
755 },
756 "services": {
757 "app": {
758 "command": [
759 "sleep",
760 "infinity"
761 ],
762 "depends_on": {
763 "db": {
764 "condition": "service_started",
765 "restart": true,
766 "required": true
767 }
768 },
769 "entrypoint": null,
770 "environment": {
771 "POSTGRES_DB": "postgres",
772 "POSTGRES_HOSTNAME": "localhost",
773 "POSTGRES_PASSWORD": "postgres",
774 "POSTGRES_PORT": "5432",
775 "POSTGRES_USER": "postgres"
776 },
777 "ports": [
778 {
779 "target": "5443",
780 "published": "5442"
781 },
782 {
783 "name": "custom port",
784 "protocol": "udp",
785 "host_ip": "127.0.0.1",
786 "app_protocol": "http",
787 "mode": "host",
788 "target": "8081",
789 "published": "8083"
790
791 }
792 ],
793 "image": "mcr.microsoft.com/devcontainers/rust:2-1-bookworm",
794 "network_mode": "service:db",
795 "volumes": [
796 {
797 "type": "bind",
798 "source": "/path/to",
799 "target": "/workspaces",
800 "bind": {
801 "create_host_path": true
802 }
803 }
804 ]
805 },
806 "db": {
807 "command": null,
808 "entrypoint": null,
809 "environment": {
810 "POSTGRES_DB": "postgres",
811 "POSTGRES_HOSTNAME": "localhost",
812 "POSTGRES_PASSWORD": "postgres",
813 "POSTGRES_PORT": "5432",
814 "POSTGRES_USER": "postgres"
815 },
816 "image": "postgres:14.1",
817 "networks": {
818 "default": null
819 },
820 "restart": "unless-stopped",
821 "volumes": [
822 {
823 "type": "volume",
824 "source": "postgres-data",
825 "target": "/var/lib/postgresql/data",
826 "volume": {}
827 }
828 ]
829 }
830 },
831 "volumes": {
832 "postgres-data": {
833 "name": "devcontainer_postgres-data"
834 }
835 }
836 }
837 "#;
838
839 let docker_compose_config: DockerComposeConfig =
840 serde_json_lenient::from_str(given_config).unwrap();
841
842 let expected_config = DockerComposeConfig {
843 name: Some("devcontainer".to_string()),
844 services: HashMap::from([
845 (
846 "app".to_string(),
847 DockerComposeService {
848 command: vec!["sleep".to_string(), "infinity".to_string()],
849 image: Some(
850 "mcr.microsoft.com/devcontainers/rust:2-1-bookworm".to_string(),
851 ),
852 volumes: vec![MountDefinition {
853 mount_type: Some("bind".to_string()),
854 source: Some("/path/to".to_string()),
855 target: "/workspaces".to_string(),
856 }],
857 network_mode: Some("service:db".to_string()),
858
859 ports: vec![
860 DockerComposeServicePort {
861 target: "5443".to_string(),
862 published: "5442".to_string(),
863 ..Default::default()
864 },
865 DockerComposeServicePort {
866 target: "8081".to_string(),
867 published: "8083".to_string(),
868 mode: Some("host".to_string()),
869 protocol: Some("udp".to_string()),
870 host_ip: Some("127.0.0.1".to_string()),
871 app_protocol: Some("http".to_string()),
872 name: Some("custom port".to_string()),
873 },
874 ],
875 ..Default::default()
876 },
877 ),
878 (
879 "db".to_string(),
880 DockerComposeService {
881 image: Some("postgres:14.1".to_string()),
882 volumes: vec![MountDefinition {
883 mount_type: Some("volume".to_string()),
884 source: Some("postgres-data".to_string()),
885 target: "/var/lib/postgresql/data".to_string(),
886 }],
887 ..Default::default()
888 },
889 ),
890 ]),
891 volumes: HashMap::from([(
892 "postgres-data".to_string(),
893 DockerComposeVolume {
894 name: "devcontainer_postgres-data".to_string(),
895 },
896 )]),
897 };
898
899 assert_eq!(docker_compose_config, expected_config);
900 }
901
902 #[test]
903 fn should_deserialize_compose_labels_as_map() {
904 let given_config = r#"
905 {
906 "name": "devcontainer",
907 "services": {
908 "app": {
909 "image": "node:22-alpine",
910 "volumes": [],
911 "labels": {
912 "com.example.test": "value",
913 "another.label": "another-value"
914 }
915 }
916 }
917 }
918 "#;
919
920 let config: DockerComposeConfig = serde_json_lenient::from_str(given_config).unwrap();
921 let service = config.services.get("app").unwrap();
922 let labels = service.labels.clone().unwrap();
923 assert_eq!(
924 labels,
925 HashMap::from([
926 ("another.label".to_string(), "another-value".to_string()),
927 ("com.example.test".to_string(), "value".to_string())
928 ])
929 );
930 }
931
932 #[test]
933 fn should_deserialize_compose_labels_as_array() {
934 let given_config = r#"
935 {
936 "name": "devcontainer",
937 "services": {
938 "app": {
939 "image": "node:22-alpine",
940 "volumes": [],
941 "labels": ["com.example.test=value"]
942 }
943 }
944 }
945 "#;
946
947 let config: DockerComposeConfig = serde_json_lenient::from_str(given_config).unwrap();
948 let service = config.services.get("app").unwrap();
949 assert_eq!(
950 service.labels,
951 Some(HashMap::from([(
952 "com.example.test".to_string(),
953 "value".to_string()
954 )]))
955 );
956 }
957
958 #[test]
959 fn should_deserialize_compose_without_volumes() {
960 let given_config = r#"
961 {
962 "name": "devcontainer",
963 "services": {
964 "app": {
965 "image": "node:22-alpine",
966 "volumes": []
967 }
968 }
969 }
970 "#;
971
972 let config: DockerComposeConfig = serde_json_lenient::from_str(given_config).unwrap();
973 assert!(config.volumes.is_empty());
974 }
975
976 #[test]
977 fn should_deserialize_compose_with_missing_volumes_field() {
978 let given_config = r#"
979 {
980 "name": "devcontainer",
981 "services": {
982 "sidecar": {
983 "image": "ubuntu:24.04"
984 }
985 }
986 }
987 "#;
988
989 let config: DockerComposeConfig = serde_json_lenient::from_str(given_config).unwrap();
990 let service = config.services.get("sidecar").unwrap();
991 assert!(service.volumes.is_empty());
992 }
993
994 #[test]
995 fn should_deserialize_compose_volume_without_source() {
996 let given_config = r#"
997 {
998 "name": "devcontainer",
999 "services": {
1000 "app": {
1001 "image": "ubuntu:24.04",
1002 "volumes": [
1003 {
1004 "type": "tmpfs",
1005 "target": "/tmp"
1006 }
1007 ]
1008 }
1009 }
1010 }
1011 "#;
1012
1013 let config: DockerComposeConfig = serde_json_lenient::from_str(given_config).unwrap();
1014 let service = config.services.get("app").unwrap();
1015 assert_eq!(service.volumes.len(), 1);
1016 assert_eq!(service.volumes[0].source, None);
1017 assert_eq!(service.volumes[0].target, "/tmp");
1018 assert_eq!(service.volumes[0].mount_type, Some("tmpfs".to_string()));
1019 }
1020
1021 #[test]
1022 fn should_deserialize_inspect_without_labels() {
1023 let given_config = r#"
1024 {
1025 "Id": "sha256:abc123",
1026 "Config": {
1027 "Env": ["PATH=/usr/bin"],
1028 "Cmd": ["node"],
1029 "WorkingDir": "/"
1030 }
1031 }
1032 "#;
1033
1034 let inspect: DockerInspect = serde_json_lenient::from_str(given_config).unwrap();
1035 assert!(inspect.config.labels.metadata.is_none());
1036 assert!(inspect.config.image_user.is_none());
1037 }
1038
1039 #[test]
1040 fn should_deserialize_inspect_with_null_labels() {
1041 let given_config = r#"
1042 {
1043 "Id": "sha256:abc123",
1044 "Config": {
1045 "Labels": null,
1046 "Env": ["PATH=/usr/bin"]
1047 }
1048 }
1049 "#;
1050
1051 let inspect: DockerInspect = serde_json_lenient::from_str(given_config).unwrap();
1052 assert!(inspect.config.labels.metadata.is_none());
1053 }
1054
1055 #[test]
1056 fn should_deserialize_inspect_with_labels_but_no_metadata() {
1057 let given_config = r#"
1058 {
1059 "Id": "sha256:abc123",
1060 "Config": {
1061 "Labels": {
1062 "com.example.test": "value"
1063 },
1064 "Env": ["PATH=/usr/bin"]
1065 }
1066 }
1067 "#;
1068
1069 let inspect: DockerInspect = serde_json_lenient::from_str(given_config).unwrap();
1070 assert!(inspect.config.labels.metadata.is_none());
1071 }
1072}