我正在尝试使用 Chef 部署我的应用程序代码,该代码适用于一个节点而在另一个节点上失败。当它们具有完全相同的配置时,我无法确定为什么它适用于一个节点而不适用于另一个节点,但我至少可以尝试在失败的节点上调试问题。
deploy_revision app_config['deploy_dir'] do
scm_provider Chef::Provider::Git
repo app_config['deploy_repo']
revision app_config['deploy_branch']
if secrets["deploy_key"]
git_ssh_wrapper "#{app_config['deploy_dir']}/git-ssh-wrapper" # For private Git repos
end
enable_submodules true
shallow_clone false
symlink_before_migrate({}) # Symlinks to add before running db migrations
purge_before_symlink [] # Directories to delete before adding symlinks
create_dirs_before_symlink [] # Directories to create before adding symlinks
# symlinks()
action :deploy
restart_command do
service "apache2" do action :restart; end
end
end
这是我部署代码的秘诀。请注意,我已尝试完全禁用符号链接,因为 Chef 总是将其自己的默认值插入其中。即使这样,我也会收到错误消息:
================================================================================
Error executing action `deploy` on resource 'deploy_revision[/var/www]'
================================================================================
Chef::Exceptions::FileNotFound
------------------------------
Cannot symlink /var/www/shared/config/database.yml to /var/www/releases/7404041cf8859a35de90ae72091bea1628391075/config/database.yml before migrate: No such file or directory - /var/www/shared/config/database.yml or /var/www/releases/7404041cf8859a35de90ae72091bea1628391075/config/database.yml
Resource Declaration:
---------------------
# In /var/chef/cache/cookbooks/kapture/recipes/api.rb
68:
69: deploy_revision app_config['deploy_dir'] do
70: scm_provider Chef::Provider::Git
71: repo app_config['deploy_repo']
72: revision app_config['deploy_branch']
73: if secrets["deploy_key"]
74: git_ssh_wrapper "#{app_config['deploy_dir']}/git-ssh-wrapper" # For private Git repos
75: end
76: enable_submodules true
Compiled Resource:
------------------
# Declared in /var/chef/cache/cookbooks/kapture/recipes/api.rb:69:in `from_file'
deploy_revision("/var/www") do
destination "/var/www/shared/cached-copy"
symlink_before_migrate {"config/database.yml"=>"config/database.yml"}
updated_by_last_action true
restart_command #<Proc:0x00007f40f366e5a0@/var/chef/cache/cookbooks/kapture/recipes/api.rb:82>
repository_cache "cached-copy"
retries 0
keep_releases 5
create_dirs_before_symlink ["tmp", "public", "config"]
updated true
provider Chef::Provider::Deploy::Revision
enable_submodules true
deploy_to "/var/www"
current_path "/var/www/current"
recipe_name "api"
revision "HEAD"
scm_provider Chef::Provider::Git
purge_before_symlink ["log", "tmp/pids", "public/system"]
git_ssh_wrapper "/var/www/git-ssh-wrapper"
remote "origin"
shared_path "/var/www/shared"
cookbook_name "kapture"
symlinks {"log"=>"log", "system"=>"public/system", "pids"=>"tmp/pids"}
action [:deploy]
repo "git@github.com:kapture/api.git"
retry_delay 2
end
[2012-09-24T15:42:07+00:00] ERROR: Running exception handlers
[2012-09-24T15:42:07+00:00] FATAL: Saving node information to /var/chef/cache/failed-run-data.json
[2012-09-24T15:42:07+00:00] ERROR: Exception handlers complete
[2012-09-24T15:42:07+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[2012-09-24T15:42:07+00:00] FATAL: Chef::Exceptions::FileNotFound: deploy_revision[/var/www] (kapture::api line 69) had an error: Chef::Exceptions::FileNotFound: Cannot symlink /var/www/shared/config/database.yml to /var/www/releases/7404041cf8859a35de90ae72091bea1628391075/config/database.yml before migrate: No such file or directory - /var/www/shared/config/database.yml or /var/www/releases/7404041cf8859a35de90ae72091bea1628391075/config/database.yml
在这里你可以看到它提到database.yml
、、tmp/
和文件夹system/
,pids
所有这些都是 Chef 喜欢设置的默认值(参见相关错误)
问题 1
这些符号链接有什么用,我怎么知道我是否需要任何符号链接。我在符号链接什么样的东西?我将使用迁移,所以如果它们对迁移有用,那么我需要它们工作。
我已多次阅读文档,但它并没有解释这是简单的英语 - 至少不是我发现的。
问题2
如果我不需要它们,如何完全禁用符号链接?遵循该错误报告中的示例没有帮助。