80dc5819d3
New dockertest has a totally different API and will require some serious refactoring. This will tide over until then by pinning the API version.
44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
package dockertest
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import (
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"errors"
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"fmt"
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"log"
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"time"
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)
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// SetupZooKeeperContainer sets up a real ZooKeeper node for testing purposes,
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// using a Docker container. It returns the container ID and its IP address,
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// or makes the test fail on error.
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func SetupZooKeeperContainer() (c ContainerID, ip string, port int, err error) {
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port = RandomPort()
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forward := fmt.Sprintf("%d:%d", port, 2181)
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if BindDockerToLocalhost != "" {
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forward = "127.0.0.1:" + forward
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}
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c, ip, err = SetupContainer(ZooKeeperImageName, port, 10*time.Second, func() (string, error) {
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return run("--name", GenerateContainerID(), "-d", "-p", forward, ZooKeeperImageName)
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})
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return
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}
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// ConnectToZooKeeper starts a ZooKeeper image and passes the nodes connection string to the connector callback function.
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// The connection string will match the ip:port pattern.
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func ConnectToZooKeeper(tries int, delay time.Duration, connector func(url string) bool) (c ContainerID, err error) {
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c, ip, port, err := SetupZooKeeperContainer()
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if err != nil {
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return c, fmt.Errorf("Could not setup ZooKeeper container: %v", err)
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}
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for try := 0; try <= tries; try++ {
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time.Sleep(delay)
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url := fmt.Sprintf("%s:%d", ip, port)
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if connector(url) {
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return c, nil
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}
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log.Printf("Try %d failed. Retrying.", try)
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}
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return c, errors.New("Could not setup ZooKeeper container.")
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}
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