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package daemon
import (
"context"
"fmt"
"testing"
"github.com/docker/docker/api/types/swarm"
"github.com/pkg/errors"
"gotest.tools/v3/assert"
)
const (
// DefaultSwarmPort is the default port use for swarm in the tests
DefaultSwarmPort = 2477
defaultSwarmListenAddr = "0.0.0.0"
)
var (
startArgs = []string{"--iptables=false", "--swarm-default-advertise-addr=lo"}
)
// StartNode (re)starts the daemon
func (d *Daemon) StartNode(t testing.TB) {
t.Helper()
d.Start(t, startArgs...)
}
// StartNodeWithBusybox starts daemon to be used as a swarm node, and loads the busybox image
func (d *Daemon) StartNodeWithBusybox(t testing.TB) {
t.Helper()
d.StartWithBusybox(t, startArgs...)
}
// RestartNode restarts a daemon to be used as a swarm node
func (d *Daemon) RestartNode(t testing.TB) {
t.Helper()
// avoid networking conflicts
d.Stop(t)
d.Start(t, startArgs...)
}
// StartAndSwarmInit starts the daemon (with busybox) and init the swarm
func (d *Daemon) StartAndSwarmInit(t testing.TB) {
d.StartNodeWithBusybox(t)
d.SwarmInit(t, swarm.InitRequest{})
}
// StartAndSwarmJoin starts the daemon (with busybox) and join the specified swarm as worker or manager
func (d *Daemon) StartAndSwarmJoin(t testing.TB, leader *Daemon, manager bool) {
t.Helper()
d.StartNodeWithBusybox(t)
tokens := leader.JoinTokens(t)
token := tokens.Worker
if manager {
token = tokens.Manager
}
t.Logf("[%s] joining swarm manager [%s]@%s, swarm listen addr %s", d.id, leader.id, leader.SwarmListenAddr(), d.SwarmListenAddr())
d.SwarmJoin(t, swarm.JoinRequest{
RemoteAddrs: []string{leader.SwarmListenAddr()},
JoinToken: token,
})
}
// SpecConstructor defines a swarm spec constructor
type SpecConstructor func(*swarm.Spec)
// SwarmListenAddr returns the listen-addr used for the daemon
func (d *Daemon) SwarmListenAddr() string {
return fmt.Sprintf("%s:%d", d.swarmListenAddr, d.SwarmPort)
}
// NodeID returns the swarm mode node ID
func (d *Daemon) NodeID() string {
return d.CachedInfo.Swarm.NodeID
}
// SwarmInit initializes a new swarm cluster.
func (d *Daemon) SwarmInit(t testing.TB, req swarm.InitRequest) {
t.Helper()
if req.ListenAddr == "" {
req.ListenAddr = fmt.Sprintf("%s:%d", d.swarmListenAddr, d.SwarmPort)
}
if req.DefaultAddrPool == nil {
req.DefaultAddrPool = d.DefaultAddrPool
req.SubnetSize = d.SubnetSize
}
if d.DataPathPort > 0 {
req.DataPathPort = d.DataPathPort
}
cli := d.NewClientT(t)
defer cli.Close()
_, err := cli.SwarmInit(context.Background(), req)
assert.NilError(t, err, "initializing swarm")
d.CachedInfo = d.Info(t)
}
// SwarmJoin joins a daemon to an existing cluster.
func (d *Daemon) SwarmJoin(t testing.TB, req swarm.JoinRequest) {
t.Helper()
if req.ListenAddr == "" {
req.ListenAddr = fmt.Sprintf("%s:%d", d.swarmListenAddr, d.SwarmPort)
}
cli := d.NewClientT(t)
defer cli.Close()
err := cli.SwarmJoin(context.Background(), req)
assert.NilError(t, err, "[%s] joining swarm", d.id)
d.CachedInfo = d.Info(t)
}
// SwarmLeave forces daemon to leave current cluster.
//
// The passed in testing.TB is only used to validate that the client was successfully created
// Some tests rely on error checking the result of the actual unlock, so allow
// the error to be returned.
func (d *Daemon) SwarmLeave(t testing.TB, force bool) error {
cli := d.NewClientT(t)
defer cli.Close()
return cli.SwarmLeave(context.Background(), force)
}
// SwarmInfo returns the swarm information of the daemon
func (d *Daemon) SwarmInfo(t testing.TB) swarm.Info {
t.Helper()
cli := d.NewClientT(t)
info, err := cli.Info(context.Background())
assert.NilError(t, err, "get swarm info")
return info.Swarm
}
// SwarmUnlock tries to unlock a locked swarm
//
// The passed in testing.TB is only used to validate that the client was successfully created
// Some tests rely on error checking the result of the actual unlock, so allow
// the error to be returned.
func (d *Daemon) SwarmUnlock(t testing.TB, req swarm.UnlockRequest) error {
cli := d.NewClientT(t)
defer cli.Close()
err := cli.SwarmUnlock(context.Background(), req)
if err != nil {
err = errors.Wrap(err, "unlocking swarm")
}
return err
}
// GetSwarm returns the current swarm object
func (d *Daemon) GetSwarm(t testing.TB) swarm.Swarm {
t.Helper()
cli := d.NewClientT(t)
defer cli.Close()
sw, err := cli.SwarmInspect(context.Background())
assert.NilError(t, err)
return sw
}
// UpdateSwarm updates the current swarm object with the specified spec constructors
func (d *Daemon) UpdateSwarm(t testing.TB, f ...SpecConstructor) {
t.Helper()
cli := d.NewClientT(t)
defer cli.Close()
sw := d.GetSwarm(t)
for _, fn := range f {
fn(&sw.Spec)
}
err := cli.SwarmUpdate(context.Background(), sw.Version, sw.Spec, swarm.UpdateFlags{})
assert.NilError(t, err)
}
// RotateTokens update the swarm to rotate tokens
func (d *Daemon) RotateTokens(t testing.TB) {
t.Helper()
cli := d.NewClientT(t)
defer cli.Close()
sw, err := cli.SwarmInspect(context.Background())
assert.NilError(t, err)
flags := swarm.UpdateFlags{
RotateManagerToken: true,
RotateWorkerToken: true,
}
err = cli.SwarmUpdate(context.Background(), sw.Version, sw.Spec, flags)
assert.NilError(t, err)
}
// JoinTokens returns the current swarm join tokens
func (d *Daemon) JoinTokens(t testing.TB) swarm.JoinTokens {
t.Helper()
cli := d.NewClientT(t)
defer cli.Close()
sw, err := cli.SwarmInspect(context.Background())
assert.NilError(t, err)
return sw.JoinTokens
}
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