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opensearch.go
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opensearch.go
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/*
* Copyright 2023 InfAI (CC SES)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package docker
import (
"context"
"crypto/tls"
"errors"
"github.com/opensearch-project/opensearch-go"
"github.com/testcontainers/testcontainers-go"
"github.com/testcontainers/testcontainers-go/wait"
"log"
"net/http"
"sync"
"time"
)
func OpenSearch(ctx context.Context, wg *sync.WaitGroup) (hostPort string, ipAddress string, err error) {
log.Println("start opensearch")
c, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
ContainerRequest: testcontainers.ContainerRequest{
Image: "public.ecr.aws/opensearchproject/opensearch:2.8.0",
Env: map[string]string{
"discovery.type": "single-node",
},
WaitingFor: wait.ForAll(
wait.ForListeningPort("9200/tcp"),
wait.ForNop(waitretry(1*time.Minute, func(ctx context.Context, target wait.StrategyTarget) error {
host, err := target.Host(ctx)
if err != nil {
log.Println("host", err)
return err
}
port, err := target.MappedPort(ctx, "9200/tcp")
if err != nil {
log.Println("port", err)
return err
}
return tryOpenSearchConnection(host, port.Port())
}))),
ExposedPorts: []string{"9200/tcp"},
AlwaysPullImage: true,
},
Started: true,
})
if err != nil {
return "", "", err
}
wg.Add(1)
go func() {
defer wg.Done()
<-ctx.Done()
log.Println("DEBUG: remove container opensearch", c.Terminate(context.Background()))
}()
ipAddress, err = c.ContainerIP(ctx)
if err != nil {
return "", "", err
}
temp, err := c.MappedPort(ctx, "9200/tcp")
if err != nil {
return "", "", err
}
hostPort = temp.Port()
err = tryOpenSearchConnection("localhost", hostPort)
if err != nil {
log.Println("ERROR: tryOpenSearchConnection(\"localhost\", hostPort)", err)
return "", "", err
}
err = tryOpenSearchConnection(ipAddress, "9200")
if err != nil {
log.Println("ERROR: tryOpenSearchConnection(ipAddress, \"9200\")", err)
return "", "", err
}
return hostPort, ipAddress, err
}
func tryOpenSearchConnection(ip string, port string) error {
log.Println("try opensearch connection to ", ip, port, "...")
client, err := opensearch.NewClient(opensearch.Config{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
},
Addresses: []string{"https://" + ip + ":" + port},
Username: "admin", // For testing only. Don't store credentials in code.
Password: "admin",
})
if err != nil {
return err
}
resp, err := client.Cluster.Health(client.Cluster.Health.WithWaitForStatus("green"))
if err != nil {
return err
}
if resp.IsError() {
return errors.New(resp.String())
}
return err
}