siemonster :: implementation of parent's network
This commit is contained in:
@@ -9,6 +9,7 @@ COPY orborus.go /app/orborus.go
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o orborus .
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FROM alpine:3.12
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RUN apk add --no-cache bash
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COPY --from=builder /app/ /
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CMD ["./orborus"]
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@@ -14,12 +14,12 @@ import (
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"log"
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"net/http"
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"os"
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"os/exec"
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"strings"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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network "github.com/docker/docker/api/types/network"
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dockerclient "github.com/docker/docker/client"
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//network "github.com/docker/docker/api/types/network"
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//natting "github.com/docker/go-connections/nat"
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@@ -27,11 +27,11 @@ import (
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var baseUrl = os.Getenv("BASE_URL")
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var baseimagename = "frikky/shuffle"
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var shuffleNetwork = "" // Filled in init if found
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var dockerApiVersion = os.Getenv("DOCKER_API_VERSION")
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var environment = os.Getenv("ENVIRONMENT_NAME")
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var orgId = os.Getenv("ORG_ID")
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var runningMode = os.Getenv("RUNNING_MODE")
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// Starts jobs in bulk, so this could be increased
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var sleepTime = 3
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@@ -62,56 +62,50 @@ func init() {
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if err != nil {
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panic(fmt.Sprintf("Unable to create docker client: %s", err))
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}
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}
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// FIXME: Move this to global variables?
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containerIdentifier := "orborus"
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networkIdentifier := "shuffle"
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// form id of current running container
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func getThisContainerId() string {
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containerId := ""
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fCol := ""
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ctx := context.Background()
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containers, err := dockercli.ContainerList(ctx, types.ContainerListOptions{
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All: true,
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})
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if err != nil {
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log.Printf("Failed getting containers during init - running without network check: %s", err)
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// some adjusting based on current running mode
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switch runningMode {
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case "Kubernetes":
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// cgroup will be like:
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// 11:net_cls,net_prio:/kubepods/besteffort/podf132b44d-cfcf-43f7-9906-79f58e268333/851466f8b5ed5aa0f265b1c95c6d2bafbc51a38dd5c5a1621b6e586572150009
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fCol = "5"
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case "Docker":
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// cgroup will be like:
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// 12:perf_event:/docker/0f06810364f52a2cd6e80bfba27419cb8a29758a204cd676388f4913bb366f2b
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fCol = "3"
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default:
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fCol = "3" // for backward-compatibility with production
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log.Printf("[WARNING] Running not containerized, so I can't figure out current container id!")
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}
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// Skip random containers. Only handle things related to Shuffle.
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for _, container := range containers {
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found := false
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// Bad states - it might just be created sometimes, leading to now netowkr
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//if container.State == "restarting" || container.State == "paused" || container.State == "exited" || container.State == "dead" {
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// continue
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//}
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for _, name := range container.Names {
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if !strings.Contains(strings.ToLower(name), containerIdentifier) {
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found = true
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continue
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}
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}
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if found {
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for key, _ := range container.NetworkSettings.Networks {
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if strings.Contains(strings.ToLower(key), networkIdentifier) {
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shuffleNetwork = key
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break
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}
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}
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if fCol != "" {
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cmd := fmt.Sprintf("head -1 /proc/self/cgroup | cut -d/ -f%s", fCol)
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out, err := exec.Command("bash","-c",cmd).Output()
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if err == nil {
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containerId = strings.TrimSpace(string(out))
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}
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}
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if len(shuffleNetwork) > 0 {
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log.Printf("Found shuffle network \"%s\" for container %s", shuffleNetwork, containerIdentifier)
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} else {
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log.Printf("Running Shuffle without a docker network")
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}
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return containerId
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}
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// Deploys the internal worker whenever something happens
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func deployWorker(image string, identifier string, env []string) {
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// figure out current container id
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containerId := getThisContainerId()
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// Binds is the actual "-v" volume.
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hostConfig := &container.HostConfig{
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NetworkMode: container.NetworkMode(fmt.Sprintf("container:%s", containerId)),
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IpcMode: container.IpcMode(fmt.Sprintf("container:%s", containerId)),
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LogConfig: container.LogConfig{
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Type: "json-file",
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Config: map[string]string{},
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@@ -121,23 +115,6 @@ func deployWorker(image string, identifier string, env []string) {
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},
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}
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// Look for Shuffle network and set it
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networkConfig := &network.NetworkingConfig{}
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if len(shuffleNetwork) > 0 {
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log.Printf("Starting worker with network %s", shuffleNetwork)
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networkConfig = &network.NetworkingConfig{
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EndpointsConfig: map[string]*network.EndpointSettings{
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shuffleNetwork: {
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NetworkID: shuffleNetwork,
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},
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},
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}
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env = append(env, fmt.Sprintf("DOCKER_NETWORK=%s", shuffleNetwork))
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} else {
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log.Printf("Starting worker WITHOUT any specified network: %s", shuffleNetwork)
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}
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// ROFL: https://docker-py.readthedocs.io/en/1.4.0/volumes/
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config := &container.Config{
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Image: image,
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@@ -154,7 +131,7 @@ func deployWorker(image string, identifier string, env []string) {
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context.Background(),
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config,
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hostConfig,
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networkConfig,
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nil,
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nil,
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identifier,
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)
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@@ -1,21 +1,17 @@
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#from golang as builder
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#
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#RUN mkdir /app
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#WORKDIR /app
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#COPY worker.go /app/worker.go
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#
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#RUN go get github.com/docker/docker/api/types
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#RUN go get github.com/docker/docker/api/types/container
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#RUN go get -u github.com/docker/docker/client
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#
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#RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o worker .
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#
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from golang as builder
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# THis is a workaround until I get docker/docker to build in a dockerfile
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# PS: This is tricky to google.
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# Might not work on some machines.
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from scratch
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#COPY --from=builder /app/ /
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COPY worker.bin /worker.bin
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WORKDIR /app
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CMD ["./worker.bin"]
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RUN go get github.com/docker/docker/api/types && \
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go get github.com/docker/docker/api/types/container && \
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go get -u github.com/docker/docker/client
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COPY worker.go /app/worker.go
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o worker .
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FROM alpine:3.12
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RUN apk add --no-cache bash
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COPY --from=builder /app/ /
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CMD ["./worker"]
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@@ -11,12 +11,12 @@ import (
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"log"
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"net/http"
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"os"
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"os/exec"
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"strings"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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network "github.com/docker/docker/api/types/network"
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dockerclient "github.com/docker/docker/client"
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)
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@@ -412,9 +412,26 @@ func shutdown(executionId, workflowId string) {
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os.Exit(3)
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}
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// form container id of current running container
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func getThisContainerId() string {
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containerId := ""
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cmd := fmt.Sprintf("head -1 /proc/self/cgroup | cut -d/ -f3")
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out, err := exec.Command("bash","-c",cmd).Output()
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if err == nil {
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containerId = strings.TrimSpace(string(out))
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}
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return containerId
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}
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// Deploys the internal worker whenever something happens
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func deployApp(cli *dockerclient.Client, image string, identifier string, env []string) error {
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// figure out current container id
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containerId := getThisContainerId()
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hostConfig := &container.HostConfig{
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NetworkMode: container.NetworkMode(fmt.Sprintf("container:%s", containerId)),
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IpcMode: container.IpcMode(fmt.Sprintf("container:%s", containerId)),
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LogConfig: container.LogConfig{
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Type: "json-file",
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Config: map[string]string{},
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@@ -426,23 +443,11 @@ func deployApp(cli *dockerclient.Client, image string, identifier string, env []
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Env: env,
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}
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networkConfig := &network.NetworkingConfig{}
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shuffleNetwork := os.Getenv("DOCKER_NETWORK")
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if len(shuffleNetwork) > 0 {
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networkConfig = &network.NetworkingConfig{
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EndpointsConfig: map[string]*network.EndpointSettings{
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shuffleNetwork: {
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NetworkID: shuffleNetwork,
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},
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},
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}
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}
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cont, err := cli.ContainerCreate(
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context.Background(),
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config,
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hostConfig,
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networkConfig,
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nil,
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nil,
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identifier,
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)
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@@ -1107,13 +1112,6 @@ func main() {
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}
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}
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shuffleNetwork := os.Getenv("DOCKER_NETWORK")
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if len(shuffleNetwork) > 0 {
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log.Printf("Running with Docker network %s", shuffleNetwork)
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} else {
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log.Printf("No docker network specified for Worker.")
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}
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// WORKER_TESTING_WORKFLOW should be a workflow ID
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authorization := ""
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executionId := ""
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