Class: Kdep::Commands::Migrate

Inherits:
Object
  • Object
show all
Defined in:
lib/kdep/commands/migrate.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(global_options:, command_options:, args:) ⇒ Migrate

Returns a new instance of Migrate.



19
20
21
22
23
24
 
# File 'lib/kdep/commands/migrate.rb', line 19

def initialize(global_options:, command_options:, args:)
  @global_options = global_options
  @command_options = command_options
  @args = args
  @ui = Kdep::UI.new
end

Class Method Details

.option_parser ⇒ Object 



9
10
11
12
13
14
15
16
17
 
# File 'lib/kdep/commands/migrate.rb', line 9

def self.option_parser
  OptionParser.new do |opts|
    opts.banner = "Usage: kdep migrate [path]"
    opts.separator ""
    opts.separator "Converts old deploy directories to kdep format."
    opts.separator "Supports both old pattern (.app-name + deploy/) and"
    opts.separator "new pattern (deploy_web/app.yml + subdirectories)."
  end
end

Instance Method Details

#execute ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
 
# File 'lib/kdep/commands/migrate.rb', line 26

def execute
  path = @args[0]
  unless path
    @ui.error("Missing path argument")
    @ui.info("Usage: kdep migrate [path]")
    exit 1
  end

  unless File.directory?(path)
    @ui.error("Path not found: #{path}")
    exit 1
  end

  # Parse old format
  old = Kdep::OldFormat.new(path)
  begin
    kdep_config = old.to_kdep_config
    name = kdep_config["name"] || old.app_name
  rescue => e
    @ui.error(e.message)
    exit 1
  end

  # Create kdep/[name]/ directory with app.yml
  target_dir = File.join(Dir.pwd, "kdep", name)
  if File.exist?(target_dir)
    @ui.error("kdep/#{name} already exists")
    exit 1
  end

  FileUtils.mkdir_p(target_dir)
  File.write(File.join(target_dir, "app.yml"), YAML.dump(kdep_config))
  @ui.file_written("kdep/#{name}/app.yml")

  # Copy canonical .gitignore so the migrated deploy stops
  # at the same ignores as 'kdep init' uses (no state.yml!).
  FileUtils.cp(
    File.join(Kdep.templates_dir, "init", "gitignore"),
    File.join(target_dir, ".gitignore")
  )
  @ui.file_written("kdep/#{name}/.gitignore")

  # Seed state.yml from the live deploy's image tag so the
  # first 'kdep bump' post-migration produces the NEXT tag,
  # not 0.1 (which would regress prod).
  if (tag = old.extracted_tag)
    Kdep::State.write(target_dir, tag: tag)
    @ui.file_written("kdep/#{name}/state.yml")
    @ui.info("Seeded state.yml from live deploy tag: #{tag}")
    unless Kdep::State.parseable_tag?(tag)
      @ui.warn("Tag #{tag} is not kdep's major.minor format. Verify state.yml before bumping; next bump may produce 0.1.")
    end
  else
    @ui.warn("Could not extract tag from old deploy (latest/missing). Next 'kdep bump' will prompt to seed state.")
  end

  # Extract and write env vars from ConfigMap
  env = old.extract_env
  unless env.empty?
    @ui.info("Extracted #{env.size} env vars from ConfigMap (already in envFrom refs)")
  end

  # Extract and write secrets (decode base64 =>plain text for secrets.yml)
  secrets = old.extract_secrets
  if secrets.empty?
    @ui.warn("No secrets found. Create kdep/#{name}/secrets.yml manually if needed.")
  else
    require "base64"
    decoded = {}
    secrets.each do |k, v|
      decoded[k] = Base64.decode64(v) rescue v
    end
    secrets_path = File.join(target_dir, "secrets.yml")
    File.write(secrets_path, YAML.dump(decoded))
    @ui.file_written("kdep/#{name}/secrets.yml")
    @ui.warn("#{secrets.size} secrets written. Review kdep/#{name}/secrets.yml — values are now plain text.")
  end

  # Generate custom resource templates (PVC, stringData Secrets)
  custom_resources = old.extract_custom_resources
  unless custom_resources.empty?
    res_dir = File.join(target_dir, "resources")
    FileUtils.mkdir_p(res_dir)
    custom_resources.each do |cr|
      kind = cr["kind"]
      doc = cr["doc"]
      res_name = doc.dig("metadata", "name") || kind.downcase
      filename = "#{res_name.gsub(/[^a-zA-Z0-9_-]/, "-")}.yml.erb"
      File.write(File.join(res_dir, filename), YAML.dump(doc))
      @ui.file_written("kdep/#{name}/resources/#{filename}")
    end
    @ui.info("#{custom_resources.size} custom resource(s) generated as templates")
  end

  @ui.success("Migration complete: kdep/#{name}/")
  @ui.info("")
  @ui.info("Generated config:")
  kdep_config.each do |k, v|
    if v.is_a?(Hash) || v.is_a?(Array)
      @ui.info("  #{k}: #{v.inspect}")
    else
      @ui.info("  #{k}: #{v}")
    end
  end

  # Automatic post-migration verification
  @ui.info("")
  verify_migration(old, target_dir, kdep_config)

  @ui.info("")
  @ui.info("Next: review kdep/#{name}/app.yml, then `kdep render #{name}` to test")
end