48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
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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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// SetupCassandraContainer sets up a real Cassandra 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 SetupCassandraContainer(versionTag string, optionalParams ...string) (c ContainerID, ip string, port int, err error) {
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port = RandomPort()
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// Forward for the CQL port.
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forward := fmt.Sprintf("%d:%d", port, 9042)
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if BindDockerToLocalhost != "" {
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forward = "127.0.0.1:" + forward
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}
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imageName := fmt.Sprintf("%s:%s", CassandraImageName, versionTag)
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c, ip, err = SetupContainer(imageName, port, 10*time.Second, func() (string, error) {
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return run(append(optionalParams, "--name", GenerateContainerID(), "-d", "-p", forward, imageName)...)
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})
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return
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}
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// ConnectToCassandra starts a Cassandra 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, where port is the mapped CQL port.
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func ConnectToCassandra(versionTag string, tries int, delay time.Duration, connector func(url string) bool, optionalParams ...string) (c ContainerID, err error) {
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c, ip, port, err := SetupCassandraContainer(versionTag, optionalParams...)
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if err != nil {
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return c, fmt.Errorf("Could not setup Cassandra 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 Cassandra container.")
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}
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