8 "github.com/edwarnicke/exechelper"
16 type Container struct {
21 extraRunningArgs string
22 volumes map[string]Volume
23 envVars map[string]string
26 func NewContainer(yamlInput ContainerConfig) (*Container, error) {
27 containerName := yamlInput["name"].(string)
28 if len(containerName) == 0 {
29 err := fmt.Errorf("container name must not be blank")
33 var container = new(Container)
34 container.volumes = make(map[string]Volume)
35 container.envVars = make(map[string]string)
36 container.name = containerName
38 if image, ok := yamlInput["image"]; ok {
39 container.image = image.(string)
41 container.image = "hs-test/vpp"
44 if args, ok := yamlInput["extra-args"]; ok {
45 container.extraRunningArgs = args.(string)
47 container.extraRunningArgs = ""
50 if isOptional, ok := yamlInput["is-optional"]; ok {
51 container.isOptional = isOptional.(bool)
53 container.isOptional = false
56 if _, ok := yamlInput["volumes"]; ok {
57 r := strings.NewReplacer("$HST_DIR", workDir)
58 for _, volu := range yamlInput["volumes"].([]interface{}) {
59 volumeMap := volu.(ContainerConfig)
60 hostDir := r.Replace(volumeMap["host-dir"].(string))
61 containerDir := volumeMap["container-dir"].(string)
62 container.addVolume(hostDir, containerDir)
64 if isDefaultWorkDir, ok := volumeMap["is-default-work-dir"]; ok &&
65 isDefaultWorkDir.(bool) &&
66 len(container.workDir) == 0 {
67 container.workDir = containerDir
73 if _, ok := yamlInput["vars"]; ok {
74 for _, envVar := range yamlInput["vars"].([]interface{}) {
75 container.addEnvVar(envVar)
81 func (c *Container) getRunCommand() string {
82 syncPath := fmt.Sprintf(" -v %s:/tmp/sync", c.getSyncPath())
83 cmd := "docker run --cap-add=all -d --privileged --network host --rm"
85 cmd += c.getVolumesAsCliOption()
86 cmd += c.getEnvVarsAsCliOption()
87 cmd += " --name " + c.name + " " + c.image + " " + c.extraRunningArgs
91 func (c *Container) run() error {
93 return fmt.Errorf("run container failed: name is blank")
96 exechelper.Run(fmt.Sprintf("mkdir -p /tmp/%s/sync", c.name))
97 cmd := c.getRunCommand()
98 err := exechelper.Run(cmd)
100 return fmt.Errorf("container run failed: %s", err)
106 func (c *Container) addVolume(hostDir string, containerDir string) {
108 volume.hostDir = hostDir
109 volume.containerDir = containerDir
110 c.volumes[hostDir] = volume
113 func (c *Container) getVolumeByHostDir(hostDir string) Volume {
114 return c.volumes[hostDir]
117 func (c *Container) getVolumesAsCliOption() string {
120 if len(c.volumes) > 0 {
121 for _, volume := range c.volumes {
122 cliOption += fmt.Sprintf(" -v %s:%s", volume.hostDir, volume.containerDir)
129 func (c *Container) getWorkDirAsCliOption() string {
130 if len(c.workDir) == 0 {
133 return fmt.Sprintf(" --workdir=\"%s\"", c.workDir)
136 func (c *Container) addEnvVar(envVar interface{}) {
137 envVarMap := envVar.(ContainerConfig)
138 name := envVarMap["name"].(string)
139 value := envVarMap["value"].(string)
140 c.envVars[name] = value
143 func (c *Container) getEnvVarsAsCliOption() string {
145 if len(c.envVars) == 0 {
149 for name, value := range c.envVars {
150 cliOption += fmt.Sprintf(" -e %s=%s", name, value)
155 func (c *Container) getSyncPath() string {
156 return fmt.Sprintf("/tmp/%s/sync", c.name)
159 func (c *Container) exec(command string) (string, error) {
160 cliCommand := "docker exec -d " + c.name + " " + command
161 byteOutput, err := exechelper.CombinedOutput(cliCommand)
162 return string(byteOutput), err
165 func (c *Container) execAction(args string) (string, error) {
166 syncFile := c.getSyncPath() + "/rc"
169 workDir := c.getWorkDirAsCliOption()
170 cmd := fmt.Sprintf("docker exec -d %s %s hs-test %s",
174 err := exechelper.Run(cmd)
178 res, err := waitForSyncFile(syncFile)
180 return "", fmt.Errorf("failed to read sync file while executing 'hs-test %s': %v", args, err)
182 o := res.StdOutput + res.ErrOutput
184 return o, fmt.Errorf("cmd resulted in non-zero value %d: %s", res.Code, res.Desc)
189 func (c *Container) stop() error {
190 return exechelper.Run("docker stop " + c.name)