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| 1 | +/* |
| 2 | +Copyright IBM Corp. 2016 All Rights Reserved. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package bddtests |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + "os/exec" |
| 22 | + "strings" |
| 23 | + |
| 24 | + "github.com/fsouza/go-dockerclient" |
| 25 | +) |
| 26 | + |
| 27 | +const dockerComposeCommand = "docker-compose" |
| 28 | + |
| 29 | +// Composition represents a docker-compose execution and management |
| 30 | +type Composition struct { |
| 31 | + endpoint string |
| 32 | + dockerClient *docker.Client |
| 33 | + apiContainers []docker.APIContainers |
| 34 | + |
| 35 | + composeFilesYaml string |
| 36 | + projectName string |
| 37 | + dockerHelper DockerHelper |
| 38 | +} |
| 39 | + |
| 40 | +// NewComposition create a new Composition specifying the project name (for isolation) and the compose files. |
| 41 | +func NewComposition(projectName string, composeFilesYaml string) (composition *Composition, err error) { |
| 42 | + errRetFunc := func() error { |
| 43 | + return fmt.Errorf("Error creating new composition '%s' using compose yaml '%s': %s", projectName, composeFilesYaml, err) |
| 44 | + } |
| 45 | + |
| 46 | + endpoint := "unix:///var/run/docker.sock" |
| 47 | + composition = &Composition{composeFilesYaml: composeFilesYaml, projectName: projectName} |
| 48 | + if composition.dockerClient, err = docker.NewClient(endpoint); err != nil { |
| 49 | + return nil, errRetFunc() |
| 50 | + } |
| 51 | + if _, err = composition.issueCommand([]string{"up", "--force-recreate", "-d"}); err != nil { |
| 52 | + return nil, errRetFunc() |
| 53 | + } |
| 54 | + if composition.dockerHelper, err = NewDockerCmdlineHelper(); err != nil { |
| 55 | + return nil, errRetFunc() |
| 56 | + } |
| 57 | + // Now parse the current system |
| 58 | + return composition, nil |
| 59 | +} |
| 60 | + |
| 61 | +func parseComposeFilesArg(composeFileArgs string) []string { |
| 62 | + var args []string |
| 63 | + for _, f := range strings.Fields(composeFileArgs) { |
| 64 | + args = append(args, []string{"-f", f}...) |
| 65 | + } |
| 66 | + return args |
| 67 | +} |
| 68 | + |
| 69 | +func (c *Composition) getFileArgs() []string { |
| 70 | + return parseComposeFilesArg(c.composeFilesYaml) |
| 71 | +} |
| 72 | + |
| 73 | +// GetContainerIDs returns the container IDs for the composition (NOTE: does NOT include those defined outside composition, eg. chaincode containers) |
| 74 | +func (c *Composition) GetContainerIDs() (containerIDs []string, err error) { |
| 75 | + var cmdOutput string |
| 76 | + if cmdOutput, err = c.issueCommand([]string{"ps", "-q"}); err != nil { |
| 77 | + return nil, fmt.Errorf("Error getting container IDs for project '%s': %s", c.projectName, err) |
| 78 | + } |
| 79 | + containerIDs = splitDockerCommandResults(cmdOutput) |
| 80 | + return containerIDs, err |
| 81 | +} |
| 82 | + |
| 83 | +func (c *Composition) getEnv() []string { |
| 84 | + return []string{"COMPOSE_PROJECT_NAME=" + c.projectName, "CORE_PEER_NETWORKID=" + c.projectName} |
| 85 | +} |
| 86 | + |
| 87 | +func (c *Composition) refreshContainerList() (err error) { |
| 88 | + var allAPIContainers []docker.APIContainers |
| 89 | + var thisProjectsContainers []docker.APIContainers |
| 90 | + if thisProjectsContainers, err = c.dockerClient.ListContainers(docker.ListContainersOptions{All: true, Filters: map[string][]string{"name": {c.projectName}}}); err != nil { |
| 91 | + return fmt.Errorf("Error refreshing container list for project '%s': %s", c.projectName, err) |
| 92 | + } |
| 93 | + //if allApiContainers, err = c.dockerClient.ListContainers(docker.ListContainersOptions{All: true}); err != nil { |
| 94 | + // return fmt.Errorf("Error refreshing container list for project '%s': %s", c.projectName, err) |
| 95 | + //} |
| 96 | + for _, apiContainer := range allAPIContainers { |
| 97 | + if composeService, ok := apiContainer.Labels["com.docker.compose.service"]; ok == true { |
| 98 | + fmt.Println(fmt.Sprintf("Container name: %s, composeService: %s, IPAddress: %s", apiContainer.Names[0], composeService, apiContainer.Networks.Networks["bridge"].IPAddress)) |
| 99 | + } |
| 100 | + } |
| 101 | + c.apiContainers = thisProjectsContainers |
| 102 | + return err |
| 103 | +} |
| 104 | + |
| 105 | +func (c *Composition) issueCommand(args []string) (_ string, err error) { |
| 106 | + errRetFunc := func() error { |
| 107 | + return fmt.Errorf("Error issuing command to docker-compose with args '%s': %s", args, err) |
| 108 | + } |
| 109 | + var cmdArgs []string |
| 110 | + cmdArgs = append(cmdArgs, c.getFileArgs()...) |
| 111 | + cmdArgs = append(cmdArgs, args...) |
| 112 | + var cmdOut []byte |
| 113 | + cmd := exec.Command(dockerComposeCommand, cmdArgs...) |
| 114 | + cmd.Env = append(cmd.Env, c.getEnv()...) |
| 115 | + if cmdOut, err = cmd.CombinedOutput(); err != nil { |
| 116 | + return string(cmdOut), errRetFunc() |
| 117 | + } |
| 118 | + |
| 119 | + // Reparse Container list |
| 120 | + if err = c.refreshContainerList(); err != nil { |
| 121 | + return "", errRetFunc() |
| 122 | + } |
| 123 | + return string(cmdOut), err |
| 124 | +} |
| 125 | + |
| 126 | +// Decompose decompose the composition. Will also remove any containers with the same projectName prefix (eg. chaincode containers) |
| 127 | +func (c *Composition) Decompose() (output string, err error) { |
| 128 | + //var containers []string |
| 129 | + output, err = c.issueCommand([]string{"stop"}) |
| 130 | + output, err = c.issueCommand([]string{"rm", "-f"}) |
| 131 | + // Now remove associated chaincode containers if any |
| 132 | + c.dockerHelper.RemoveContainersWithNamePrefix(c.projectName) |
| 133 | + return output, err |
| 134 | +} |
| 135 | + |
| 136 | +// parseComposition parses the current docker-compose project from ps command |
| 137 | +func (c *Composition) parseComposition() (err error) { |
| 138 | + //c.issueCommand() |
| 139 | + return nil |
| 140 | +} |
| 141 | + |
| 142 | +// GetAPIContainerForComposeService return the docker.APIContainers with the supplied composeService name. |
| 143 | +func (c *Composition) GetAPIContainerForComposeService(composeService string) (apiContainer *docker.APIContainers, err error) { |
| 144 | + for _, apiContainer := range c.apiContainers { |
| 145 | + if currComposeService, ok := apiContainer.Labels["com.docker.compose.service"]; ok == true { |
| 146 | + if currComposeService == composeService { |
| 147 | + return &apiContainer, nil |
| 148 | + } |
| 149 | + } |
| 150 | + } |
| 151 | + return nil, fmt.Errorf("Could not find container with compose service '%s'", composeService) |
| 152 | +} |
| 153 | + |
| 154 | +// GetIPAddressForComposeService returns the IPAddress of the container with the supplied composeService name. |
| 155 | +func (c *Composition) GetIPAddressForComposeService(composeService string) (ipAddress string, err error) { |
| 156 | + errRetFunc := func() error { |
| 157 | + return fmt.Errorf("Error getting IPAddress for compose service '%s': %s", composeService, err) |
| 158 | + } |
| 159 | + var apiContainer *docker.APIContainers |
| 160 | + if apiContainer, err = c.GetAPIContainerForComposeService(composeService); err != nil { |
| 161 | + return "", errRetFunc() |
| 162 | + } |
| 163 | + // Now get the IPAddress |
| 164 | + return apiContainer.Networks.Networks["bridge"].IPAddress, nil |
| 165 | +} |
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