创建新容器后,是否可以运行命令从主机获取容器的IP地址?
基本上,一旦Docker创建了容器,我就想滚动我自己的代码部署和容器配置脚本。
创建新容器后,是否可以运行命令从主机获取容器的IP地址?
基本上,一旦Docker创建了容器,我就想滚动我自己的代码部署和容器配置脚本。
当前回答
结合前面的答案,根据Docker图像名称查找容器ID:
docker inspect --format '{{ .NetworkSettings.IPAddress }}' `docker ps | grep $IMAGE_NAME | sed 's/\|/ /' | awk '{print $1}'`
其他回答
结合前面的答案,根据Docker图像名称查找容器ID:
docker inspect --format '{{ .NetworkSettings.IPAddress }}' `docker ps | grep $IMAGE_NAME | sed 's/\|/ /' | awk '{print $1}'`
对于窗口10:
docker inspect --format "{{ .NetworkSettings.IPAddress }}" containerId
在Windows PowerShell中尝试:
docker inspect -f "{{ .NetworkSettings.Networks.nat.IPAddress }}" <container id>
这是我今天用Python开发的一个解决方案,使用docker inspect容器JSON输出作为数据源。
我有很多容器和基础设施需要检查,我需要从任何容器中以快速、漂亮的方式获取基本的网络信息。这就是我写这个剧本的原因。
重要提示:从1.9版开始,Docker允许您创建多个网络并将它们连接到容器。
#!/usr/bin/python
import json
import subprocess
import sys
try:
CONTAINER = sys.argv[1]
except Exception as e:
print "\n\tSpecify the container name, please."
print "\t\tEx.: script.py my_container\n"
sys.exit(1)
# Inspecting container via Subprocess
proc = subprocess.Popen(["docker","inspect",CONTAINER],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
out = proc.stdout.read()
json_data = json.loads(out)[0]
net_dict = {}
for network in json_data["NetworkSettings"]["Networks"].keys():
net_dict['mac_addr'] = json_data["NetworkSettings"]["Networks"][network]["MacAddress"]
net_dict['ipv4_addr'] = json_data["NetworkSettings"]["Networks"][network]["IPAddress"]
net_dict['ipv4_net'] = json_data["NetworkSettings"]["Networks"][network]["IPPrefixLen"]
net_dict['ipv4_gtw'] = json_data["NetworkSettings"]["Networks"][network]["Gateway"]
net_dict['ipv6_addr'] = json_data["NetworkSettings"]["Networks"][network]["GlobalIPv6Address"]
net_dict['ipv6_net'] = json_data["NetworkSettings"]["Networks"][network]["GlobalIPv6PrefixLen"]
net_dict['ipv6_gtw'] = json_data["NetworkSettings"]["Networks"][network]["IPv6Gateway"]
for item in net_dict:
if net_dict[item] == "" or net_dict[item] == 0:
net_dict[item] = "null"
print "\n[%s]" % network
print "\n{}{:>13} {:>14}".format(net_dict['mac_addr'],"IP/NETWORK","GATEWAY")
print "--------------------------------------------"
print "IPv4 settings:{:>16}/{:<5} {}".format(net_dict['ipv4_addr'],net_dict['ipv4_net'],net_dict['ipv4_gtw'])
print "IPv6 settings:{:>16}/{:<5} {}".format(net_dict['ipv6_addr'],net_dict['ipv6_net'],net_dict['ipv6_gtw'])
输出为:
$ python docker_netinfo.py debian1
[frontend]
02:42:ac:12:00:02 IP/NETWORK GATEWAY
--------------------------------------------
IPv4 settings: 172.18.0.2/16 172.18.0.1
IPv6 settings: null/null null
[backend]
02:42:ac:13:00:02 IP/NETWORK GATEWAY
--------------------------------------------
IPv4 settings: 172.19.0.2/16 172.19.0.1
IPv6 settings: null/null null
我用这个简单的方法
docker exec -it <container id or name> hostname -i
e.g
ubuntu@myhost:~$ docker exec -it 3d618ac670fe hostname -i
10.0.1.5