使用 Python 遍历备份 docker-compose 文件中的镜像
Python 脚本如下：
import os
def get_images():
file = open("docker-compose.yml")
images = []
for line in file.readlines():
line = line.strip('\n')
if "image" in line:
image = line.replace("image:","").strip()
images.append(image)
return images
def pull_images():
images = get_images()
for image in images:
pull_commond = "docker pull " + image
print(pull_commond)
os.system(pull_commond)
def save_imaegs():
images = get_images()
for image in images:
sub_name = image.split("/")[-1].replace(":","_") + ".tar"
if os.path.exists(sub_name):
print(sub_name,'is exists!')
else:
save_commond = "docker save " + image + " -o " + sub_name
print(save_commond)
os.system(save_commond)
def load_images():
files = os.listdir(".")
for file in files:
if ".tar" in file:
print(file)
load_commond = "docker load -i " + file
print(load_commond)
os.system(load_commond)
def start_deal(num):
if num == 1:
pull_images()
elif num == 2:
save_imaegs()
elif num == 3:
load_images()
if __name__=="__main__":
start_deal(1)