bade195e93
Currently the latest container is the one that was created last. But if we have had a failed deployment that left two containers running that would not be the one we want. The second container could be in a restart loop for example. Instead we want the container that is running the image tagged as latest. As we now tag as latest after a successful deployment we can trust that that is a healthy container. In the case that there is no container running the latest image tag, we'll fall back to the latest container. This could happen if the deploy was halted in between the old container being stopped and the image being tagged as latest.
90 lines
2.2 KiB
Ruby
90 lines
2.2 KiB
Ruby
module Kamal::Commands
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class Base
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delegate :sensitive, :argumentize, to: Kamal::Utils
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DOCKER_HEALTH_STATUS_FORMAT = "'{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}'"
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DOCKER_HEALTH_LOG_FORMAT = "'{{json .State.Health}}'"
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attr_accessor :config
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def initialize(config)
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@config = config
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end
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def run_over_ssh(*command, host:)
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"ssh".tap do |cmd|
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if config.ssh.proxy && config.ssh.proxy.is_a?(Net::SSH::Proxy::Jump)
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cmd << " -J #{config.ssh.proxy.jump_proxies}"
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elsif config.ssh.proxy && config.ssh.proxy.is_a?(Net::SSH::Proxy::Command)
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cmd << " -o ProxyCommand='#{config.ssh.proxy.command_line_template}'"
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end
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cmd << " -t #{config.ssh.user}@#{host} -p #{config.ssh.port} '#{command.join(" ")}'"
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end
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end
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def container_id_for(container_name:, only_running: false)
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docker :container, :ls, *("--all" unless only_running), "--filter", "name=^#{container_name}$", "--quiet"
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end
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def make_directory_for(remote_file)
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make_directory Pathname.new(remote_file).dirname.to_s
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end
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def make_directory(path)
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[ :mkdir, "-p", path ]
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end
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def remove_directory(path)
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[ :rm, "-r", path ]
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end
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private
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def combine(*commands, by: "&&")
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commands
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.compact
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.collect { |command| Array(command) + [ by ] }.flatten # Join commands
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.tap { |commands| commands.pop } # Remove trailing combiner
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end
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def chain(*commands)
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combine *commands, by: ";"
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end
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def pipe(*commands)
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combine *commands, by: "|"
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end
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def append(*commands)
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combine *commands, by: ">>"
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end
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def write(*commands)
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combine *commands, by: ">"
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end
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def any(*commands)
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combine *commands, by: "||"
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end
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def xargs(command)
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[ :xargs, command ].flatten
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end
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def shell(command)
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[ :sh, "-c", "'#{command.flatten.join(" ").gsub("'", "'\\\\''")}'" ]
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end
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def docker(*args)
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args.compact.unshift :docker
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end
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def git(*args)
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args.compact.unshift :git
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end
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def tags(**details)
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Kamal::Tags.from_config(config, **details)
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end
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end
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end
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