10 "github.com/edwarnicke/exechelper"
14 logDir string = "/tmp/hs-test/"
18 workDir, _ = os.Getwd()
27 type Container struct {
32 extraRunningArgs string
33 volumes map[string]Volume
34 envVars map[string]string
35 vppInstance *VppInstance
38 func newContainer(yamlInput ContainerConfig) (*Container, error) {
39 containerName := yamlInput["name"].(string)
40 if len(containerName) == 0 {
41 err := fmt.Errorf("container name must not be blank")
45 var container = new(Container)
46 container.volumes = make(map[string]Volume)
47 container.envVars = make(map[string]string)
48 container.name = containerName
50 if image, ok := yamlInput["image"]; ok {
51 container.image = image.(string)
53 container.image = "hs-test/vpp"
56 if args, ok := yamlInput["extra-args"]; ok {
57 container.extraRunningArgs = args.(string)
59 container.extraRunningArgs = ""
62 if isOptional, ok := yamlInput["is-optional"]; ok {
63 container.isOptional = isOptional.(bool)
65 container.isOptional = false
68 if _, ok := yamlInput["volumes"]; ok {
69 r := strings.NewReplacer("$HST_DIR", workDir)
70 for _, volu := range yamlInput["volumes"].([]interface{}) {
71 volumeMap := volu.(ContainerConfig)
72 hostDir := r.Replace(volumeMap["host-dir"].(string))
73 containerDir := volumeMap["container-dir"].(string)
74 isDefaultWorkDir := false
76 if isDefault, ok := volumeMap["is-default-work-dir"]; ok {
77 isDefaultWorkDir = isDefault.(bool)
80 container.addVolume(hostDir, containerDir, isDefaultWorkDir)
85 if _, ok := yamlInput["vars"]; ok {
86 for _, envVar := range yamlInput["vars"].([]interface{}) {
87 envVarMap := envVar.(ContainerConfig)
88 name := envVarMap["name"].(string)
89 value := envVarMap["value"].(string)
90 container.addEnvVar(name, value)
96 func (c *Container) getWorkDirVolume() (res Volume, exists bool) {
97 for _, v := range c.volumes {
98 if v.isDefaultWorkDir {
107 func (c *Container) getHostWorkDir() (res string) {
108 if v, ok := c.getWorkDirVolume(); ok {
114 func (c *Container) getContainerWorkDir() (res string) {
115 if v, ok := c.getWorkDirVolume(); ok {
121 func (c *Container) getContainerArguments() string {
122 args := "--cap-add=all --privileged --network host --rm"
123 args += c.getVolumesAsCliOption()
124 args += c.getEnvVarsAsCliOption()
125 args += " --name " + c.name + " " + c.image
126 args += " " + c.extraRunningArgs
130 func (c *Container) create() error {
131 cmd := "docker create " + c.getContainerArguments()
133 return exechelper.Run(cmd)
136 func (c *Container) start() error {
137 cmd := "docker start " + c.name
139 return exechelper.Run(cmd)
142 func (c *Container) run() error {
144 return fmt.Errorf("run container failed: name is blank")
147 cmd := "docker run -d " + c.getContainerArguments()
149 err := exechelper.Run(cmd)
151 return fmt.Errorf("container run failed: %s", err)
157 func (c *Container) addVolume(hostDir string, containerDir string, isDefaultWorkDir bool) {
159 volume.hostDir = hostDir
160 volume.containerDir = containerDir
161 volume.isDefaultWorkDir = isDefaultWorkDir
162 c.volumes[hostDir] = volume
165 func (c *Container) getVolumesAsCliOption() string {
168 if len(c.volumes) > 0 {
169 for _, volume := range c.volumes {
170 cliOption += fmt.Sprintf(" -v %s:%s", volume.hostDir, volume.containerDir)
177 func (c *Container) addEnvVar(name string, value string) {
178 c.envVars[name] = value
181 func (c *Container) getEnvVarsAsCliOption() string {
183 if len(c.envVars) == 0 {
187 for name, value := range c.envVars {
188 cliOption += fmt.Sprintf(" -e %s=%s", name, value)
193 func (c *Container) newVppInstance(additionalConfig ...Stanza) (*VppInstance, error) {
194 vpp := new(VppInstance)
197 if len(additionalConfig) > 0 {
198 vpp.additionalConfig = additionalConfig[0]
206 func (c *Container) copy(sourceFileName string, targetFileName string) error {
207 cmd := exec.Command("docker", "cp", sourceFileName, c.name+":"+targetFileName)
211 func (c *Container) createFile(destFileName string, content string) error {
212 f, err := os.CreateTemp("/tmp", "hst-config")
216 defer os.Remove(f.Name())
218 if _, err := f.Write([]byte(content)); err != nil {
221 if err := f.Close(); err != nil {
224 c.copy(f.Name(), destFileName)
229 * Executes in detached mode so that the started application can continue to run
230 * without blocking execution of test
232 func (c *Container) execServer(command string, arguments ...any) {
233 serverCommand := fmt.Sprintf(command, arguments...)
234 containerExecCommand := "docker exec -d" + c.getEnvVarsAsCliOption() +
235 " " + c.name + " " + serverCommand
237 c.suite.log(containerExecCommand)
238 c.suite.assertNil(exechelper.Run(containerExecCommand))
241 func (c *Container) exec(command string, arguments ...any) string {
242 cliCommand := fmt.Sprintf(command, arguments...)
243 containerExecCommand := "docker exec" + c.getEnvVarsAsCliOption() +
244 " " + c.name + " " + cliCommand
246 c.suite.log(containerExecCommand)
247 byteOutput, err := exechelper.CombinedOutput(containerExecCommand)
248 c.suite.assertNil(err)
249 return string(byteOutput)
252 func (c *Container) getLogDirPath() string {
253 testId := c.suite.getTestId()
254 testName := c.suite.T().Name()
255 logDirPath := logDir + testName + "/" + testId + "/"
257 cmd := exec.Command("mkdir", "-p", logDirPath)
258 if err := cmd.Run(); err != nil {
259 c.suite.T().Fatalf("mkdir error: %v", err)
265 func (c *Container) saveLogs() {
266 cmd := exec.Command("docker", "inspect", "--format='{{.State.Status}}'", c.name)
267 if output, _ := cmd.CombinedOutput(); !strings.Contains(string(output), "running") {
271 testLogFilePath := c.getLogDirPath() + "container-" + c.name + ".log"
273 cmd = exec.Command("docker", "logs", "--details", "-t", c.name)
274 output, err := cmd.CombinedOutput()
276 c.suite.T().Fatalf("fetching logs error: %v", err)
279 f, err := os.Create(testLogFilePath)
281 c.suite.T().Fatalf("file create error: %v", err)
283 fmt.Fprint(f, string(output))
287 func (c *Container) log() string {
288 cmd := "docker logs " + c.name
290 o, err := exechelper.CombinedOutput(cmd)
291 c.suite.assertNil(err)
295 func (c *Container) stop() error {
296 if c.vppInstance != nil && c.vppInstance.apiChannel != nil {
297 c.vppInstance.saveLogs()
298 c.vppInstance.disconnect()
302 return exechelper.Run("docker stop " + c.name + " -t 0")
305 func (c *Container) createConfig(targetConfigName string, templateName string, values any) {
306 template := template.Must(template.ParseFiles(templateName))
308 f, err := os.CreateTemp("/tmp/hs-test/", "hst-config")
309 c.suite.assertNil(err)
310 defer os.Remove(f.Name())
312 err = template.Execute(f, values)
313 c.suite.assertNil(err)
316 c.suite.assertNil(err)
318 c.copy(f.Name(), targetConfigName)
322 cmd := exec.Command("mkdir", "-p", logDir)
323 if err := cmd.Run(); err != nil {