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Contents
module Seira
module Util
class ResourceRenderer
include ERB::Util
def initialize(template:, context:, locals:)
@template = template
@context = context
@locals = locals
@summary = {}
end
# "binding" is a special method every ruby object has to expose its
# instance variables
# https://ruby-doc.org/core-2.2.0/Binding.html
def render
result = ERB.new(@template).result(binding)
puts "Rendered with following ERB variables:"
@summary.each do |key, value|
puts "#{key}: #{value}"
end
result
end
# BEGIN ERB templating methods and variables
def current_replica_count(deployment)
count = Seira::Helpers.get_current_replicas(deployment: deployment, context: @context)
@summary["#{deployment}-replicas"] = count
# Validate a sane count so that we don't accidentally deploy 0 replicas
unless count && count.is_a?(Integer)
fail "Received invalid value for replica count for Deployment #{deployment} '#{count}'"
end
count
end
def get_secret(secret_name)
secret_value = Seira::Helpers.get_secret(key: secret_name, context: @context)
@summary[secret_name] = 'fetched'
# Validate we actually get something back
fail "Missing value for secret #{secret_name}" unless secret_value
secret_value
end
def target_revision
rv = @locals['REVISION']
@summary["revision"] = rv
rv
end
def restarted_at_value
rv = @locals['RESTARTED_AT_VALUE']
@summary["restarted_at_value"] = rv
rv
end
# END ERB templating methods and variables
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems