​以Harbor为例，ssl证书更新后，docker-compose启动不起作用。
问题出在一句很重要的命令：./prepare

步骤：（Harbor样例）

1. cd /data/ssl 换ssl证书

Harbor.yml ssl证书部分：

# Configuration file of Harbor

# The IP address or hostname to access admin UI and registry service.
# DO NOT use localhost or 127.0.0.1, because Harbor needs to be accessed by external clients.
hostname: reg.xxx.cn

# http related config
http:
  # port for http, default is 80. If https enabled, this port will redirect to https port
  port: 80

# https related config
https:
  # https port for harbor, default is 443
  port: 443
  # The path of cert and key files for nginx
  certificate: /data/ssl/xxx.cn_server.crt
  private_key: /data/ssl/xxx.cn_server.key

# # Uncomment following will enable tls communication between all harbor components
# internal_tls:
#   # set enabled to true means internal tls is enabled
#   enabled: true
#   # put your cert and key files on dir
#   dir: /etc/harbor/tls/internal

# Uncomment external_url if you want to enable external proxy
# And when it enabled the hostname will no longer used
# external_url: https://reg.mydomain.com:8433

# The initial password of Harbor admin
# It only works in first time to install harbor
# Remember Change the admin password from UI after launching Harbor.

然后：

docker-compose down
docker ps -a
./prepare   #这个必须得执行，否则ssl证书不生效
docker-compose up -d
docker ps