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(POOLER-123) Improve PUT vm endpoint error messaging

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Prior to this commit the PUT vm endpoint didn't give any useful
information about why a user's request failed.

This commit updates PUT to output a more helpful set of error messages
in the `failure` key that gets returned in the JSON response.
This commit is contained in:
Brandon High 2019-12-03 17:35:40 -08:00
parent ac17284a61
commit da48517750
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GPG key ID: 270079C784FCAFDE
1 changed files with 16 additions and 14 deletions
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30
lib/vmpooler/api/v1.rb
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@ -875,7 +875,7 @@ module Vmpooler
status 404
result = { 'ok' => false }
failure = false
failure = []
params[:hostname] = hostname_shorten(params[:hostname], config['domain'])
@ -896,36 +896,38 @@ module Vmpooler
max_lifetime_upper_limit = config[:max_lifetime_upper_limit]
if max_lifetime_upper_limit
max_lifetime_upper_limit = max_lifetime_upper_limit.to_i
unless arg.to_i < max_lifetime_upper_limit
failure = true
end
# also make sure we do not extend past max_lifetime_upper_limit
rdata = backend.hgetall('vmpooler__vm__' + params[:hostname])
running = ((Time.now - Time.parse(rdata['checkout'])) / 60 / 60).round(2)
unless running + arg.to_i < max_lifetime_upper_limit
failure = true
if arg.to_i >= max_lifetime_upper_limit
failure.push("You provided a lifetime (#{arg}) that exceeds the configured maximum of #{max_lifetime_upper_limit}.")
else
# also make sure we do not extend past max_lifetime_upper_limit
rdata = backend.hgetall('vmpooler__vm__' + params[:hostname])
running = ((Time.now - Time.parse(rdata['checkout'])) / 60 / 60).round(2)
unless running + arg.to_i < max_lifetime_upper_limit
failure.push("You provided a lifetime (#{arg}) that will extend the current lifetime past the configured maximum of #{max_lifetime_upper_limit}.")
end
end
end
# validate lifetime is within boundaries
unless arg.to_i > 0
failure = true
failure.push("You provided a lifetime (#{arg}) but you must provide a positive number.")
end
when 'tags'
unless arg.is_a?(Hash)
failure = true
failure.push("You provided tags (#{arg}) as something other than a hash.")
end
if config['allowed_tags']
failure = true if not (arg.keys - config['allowed_tags']).empty?
failure.push("You provided unsuppored tags (#{arg}).") if not (arg.keys - config['allowed_tags']).empty?
end
else
failure = true
failure.push("Unknown argument #{arg}.")
end
end
if failure
if failure.size > 0
status 400
result['failure'] = failure
else
jdata.each do |param, arg|
case param