// StartCtr starts the specified Container with options specific to localkube. If etcdDataDir is empty, no directory will be mounted for etcd.
func (d *Controller) StartCtr(ctrId, etcdDataDir string) error {
binds := []string{
"/sys:/sys:rw",
"/var/lib/docker:/var/lib/docker",
"/mnt/sda1/var/lib/docker:/mnt/sda1/var/lib/docker",
"/var/lib/kubelet:/var/lib/kubelet",
"/var/run:/var/run:rw",
"/:/rootfs:ro",
}
// if provided mount etcd data dir
if len(etcdDataDir) != 0 {
dataBind := fmt.Sprintf("%s:%s", etcdDataDir, ContainerDataDir)
binds = append(binds, dataBind)
}
hostCfg := &docker.HostConfig{
Binds: binds,
RestartPolicy: docker.AlwaysRestart(),
NetworkMode: "host",
PidMode: "host",
Privileged: true,
}
d.log.Println("Starting localkube container...")
err := d.StartContainer(ctrId, hostCfg)
if err != nil {
return fmt.Errorf("could not start container `%s`: %v", ctrId, err)
}
return nil
}
func (s *S) TestServiceSpecForNodeContainer(c *check.C) {
c1 := nodecontainer.NodeContainerConfig{
Name: "swarmbs",
Config: docker.Config{
Image: "bsimg",
Env: []string{
"A=1",
"B=2",
},
Labels: map[string]string{"label1": "val1"},
},
HostConfig: docker.HostConfig{
RestartPolicy: docker.AlwaysRestart(),
Privileged: true,
Binds: []string{"/xyz:/abc:ro"},
},
}
err := nodecontainer.AddNewContainer("", &c1)
c.Assert(err, check.IsNil)
serviceSpec, err := serviceSpecForNodeContainer("swarmbs", "")
c.Assert(err, check.IsNil)
expectedLabels := map[string]string{
"label1": "val1",
"tsuru.nodecontainer.name": "swarmbs",
"tsuru.nodecontainer": "true",
"tsuru.node.pool": "",
"tsuru.node.provisioner": "swarm",
}
expected := &swarm.ServiceSpec{
Annotations: swarm.Annotations{
Name: "node-container-swarmbs-all",
Labels: expectedLabels,
},
Mode: swarm.ServiceMode{Global: &swarm.GlobalService{}},
TaskTemplate: swarm.TaskSpec{
ContainerSpec: swarm.ContainerSpec{
Image: "bsimg",
Env: []string{"A=1", "B=2"},
Labels: expectedLabels,
Mounts: []mount.Mount{
{
Type: mount.TypeBind,
Source: "/xyz",
Target: "/abc",
ReadOnly: true,
},
},
},
Placement: &swarm.Placement{Constraints: []string(nil)},
},
}
c.Assert(serviceSpec, check.DeepEquals, expected)
err = nodecontainer.AddNewContainer("p1", &c1)
c.Assert(err, check.IsNil)
err = nodecontainer.AddNewContainer("p2", &c1)
c.Assert(err, check.IsNil)
serviceSpec, err = serviceSpecForNodeContainer("swarmbs", "p1")
c.Assert(err, check.IsNil)
c.Assert(serviceSpec.TaskTemplate.Placement.Constraints, check.DeepEquals, []string{"node.labels.pool == p1"})
serviceSpec, err = serviceSpecForNodeContainer("swarmbs", "")
c.Assert(err, check.IsNil)
constraints := sort.StringSlice(serviceSpec.TaskTemplate.Placement.Constraints)
constraints.Sort()
c.Assert([]string(constraints), check.DeepEquals, []string{"node.labels.pool != p1", "node.labels.pool != p2"})
}