Question

如果我以分离模式运行容器，则它将按预期运行，如下所示。但是，如果我以交互方式运行它，则端口9200并未按预期分配给elasticsearch。

# docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node"  -d elasticsearch:7.3.1
650a7ec48812325631183d1c9d53e7d6d81ab296bfe9d8076593471aede4fa43

# docker exec -it 650a7ec48812325631183d1c9d53e7d6d81ab296bfe9d8076593471aede4fa43 bash

[root@650a7ec48812 elasticsearch]# curl http://localhost:9200/
{
  "name" : "650a7ec48812",
  "cluster_name" : "docker-cluster",
  "cluster_uuid" : "soPITNmpTimq7KJApj9s9A",
  "version" : {
    "number" : "7.3.1",
    "build_flavor" : "default",
    "build_type" : "docker",
    "build_hash" : "4749ba6",
    "build_date" : "2019-08-19T20:19:25.651794Z",
    "build_snapshot" : false,
    "lucene_version" : "8.1.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

根据我的理解，分离和交互/终端模式是相同的（一个在同一线程中继续，而另一个在创建新线程）。有人可以解释这两种运行docker image模式的区别吗？

# docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -it elasticsearch:7.3.1 bash

# curl http://localhost:9200/
curl: (7) Failed to connect to ::1: Cannot assign requested address

Answer 1

这是因为自您覆盖elasticsearch以来CMD尚未启动，容器将运行到bash，在两种模式之间没有任何关系...

分离和交互模式之间的区别

1 个答案: