(maint) Fix deprecation warning for redis ruby library

The syntax for pipelined has changed and the old syntax will be removed in v5.0.0
Fixing the syntax now since the block syntax has been supported for a while now.

lib/vmpooler/api/helpers.rb

@@ -147,12 +147,12 @@ module Vmpooler
 
       def export_tags(backend, hostname, tags)
         tracer.in_span("Vmpooler::API::Helpers.#{__method__}") do
-          backend.pipelined do
+          backend.pipelined do |pipeline|
             tags.each_pair do |tag, value|
               next if value.nil? or value.empty?
 
-              backend.hset("vmpooler__vm__#{hostname}", "tag:#{tag}", value)
+              pipeline.hset("vmpooler__vm__#{hostname}", "tag:#{tag}", value)
-              backend.hset("vmpooler__tag__#{Date.today}", "#{hostname}:#{tag}", value)
+              pipeline.hset("vmpooler__tag__#{Date.today}", "#{hostname}:#{tag}", value)
             end
           end
         end
@@ -201,9 +201,9 @@ module Vmpooler
         tracer.in_span("Vmpooler::API::Helpers.#{__method__}") do
           # using pipelined is much faster than querying each of the pools and adding them
           # as we get the result.
-          res = backend.pipelined do
+          res = backend.pipelined do |pipeline|
             pools.each do |pool|
-              backend.scard(key + pool['name'])
+              pipeline.scard(key + pool['name'])
             end
           end
           res.inject(0) { |m, x| m + x }.to_i
@@ -217,9 +217,9 @@ module Vmpooler
           # using pipelined is much faster than querying each of the pools and adding them
           # as we get the result.
           temp_hash = {}
-          res = backend.pipelined do
+          res = backend.pipelined do |pipeline|
             pools.each do |pool|
-              backend.scard(key + pool['name'])
+              pipeline.scard(key + pool['name'])
             end
           end
           pools.each_with_index do |pool, i|
@@ -236,9 +236,9 @@ module Vmpooler
           # using pipelined is much faster than querying each of the pools and adding them
           # as we get the result.
           temp_hash = {}
-          res = backend.pipelined do
+          res = backend.pipelined do |pipeline|
             pools.each do |pool|
-              backend.hget(key, pool['name'])
+              pipeline.hget(key, pool['name'])
             end
           end
           pools.each_with_index do |pool, i|

lib/vmpooler/pool_manager.rb

@@ -148,15 +148,15 @@ module Vmpooler
         end
         pool_alias = redis.hget("vmpooler__vm__#{vm}", 'pool_alias')
 
-        redis.pipelined do
+        redis.pipelined do |pipeline|
-          redis.hset("vmpooler__active__#{pool}", vm, Time.now)
+          pipeline.hset("vmpooler__active__#{pool}", vm, Time.now)
-          redis.hset("vmpooler__vm__#{vm}", 'checkout', Time.now)
+          pipeline.hset("vmpooler__vm__#{vm}", 'checkout', Time.now)
           if ondemandrequest_hash['token:token']
-            redis.hset("vmpooler__vm__#{vm}", 'token:token', ondemandrequest_hash['token:token'])
+            pipeline.hset("vmpooler__vm__#{vm}", 'token:token', ondemandrequest_hash['token:token'])
-            redis.hset("vmpooler__vm__#{vm}", 'token:user', ondemandrequest_hash['token:user'])
+            pipeline.hset("vmpooler__vm__#{vm}", 'token:user', ondemandrequest_hash['token:user'])
-            redis.hset("vmpooler__vm__#{vm}", 'lifetime', $config[:config]['vm_lifetime_auth'].to_i)
+            pipeline.hset("vmpooler__vm__#{vm}", 'lifetime', $config[:config]['vm_lifetime_auth'].to_i)
           end
-          redis.sadd("vmpooler__#{request_id}__#{pool_alias}__#{pool}", vm)
+          pipeline.sadd("vmpooler__#{request_id}__#{pool_alias}__#{pool}", vm)
         end
         move_vm_queue(pool, vm, 'pending', 'running', redis)
         check_ondemand_request_ready(request_id, redis)
@@ -164,12 +164,12 @@ module Vmpooler
         redis.smove("vmpooler__pending__#{pool}", "vmpooler__ready__#{pool}", vm)
       end
 
-      redis.pipelined do
+      redis.pipelined do |pipeline|
-        redis.hset("vmpooler__boot__#{Date.today}", "#{pool}:#{vm}", finish) # maybe remove as this is never used by vmpooler itself?
+        pipeline.hset("vmpooler__boot__#{Date.today}", "#{pool}:#{vm}", finish) # maybe remove as this is never used by vmpooler itself?
-        redis.hset("vmpooler__vm__#{vm}", 'ready', Time.now)
+        pipeline.hset("vmpooler__vm__#{vm}", 'ready', Time.now)
 
         # last boot time is displayed in API, and used by alarming script
-        redis.hset('vmpooler__lastboot', pool, Time.now)
+        pipeline.hset('vmpooler__lastboot', pool, Time.now)
       end
 
       $metrics.timing("time_to_ready_state.#{pool}", finish)
@@ -418,9 +418,9 @@ module Vmpooler
           finish = format('%<time>.2f', time: Time.now - start)
 
           @redis.with_metrics do |redis|
-            redis.pipelined do
+            redis.pipelined do |pipeline|
-              redis.hset("vmpooler__clone__#{Date.today}", "#{pool_name}:#{new_vmname}", finish)
+              pipeline.hset("vmpooler__clone__#{Date.today}", "#{pool_name}:#{new_vmname}", finish)
-              redis.hset("vmpooler__vm__#{new_vmname}", 'clone_time', finish)
+              pipeline.hset("vmpooler__vm__#{new_vmname}", 'clone_time', finish)
             end
           end
           $logger.log('s', "[+] [#{pool_name}] '#{new_vmname}' cloned in #{finish} seconds")
@@ -428,10 +428,10 @@ module Vmpooler
           $metrics.timing("clone.#{pool_name}", finish)
         rescue StandardError
           @redis.with_metrics do |redis|
-            redis.pipelined do
+            redis.pipelined do |pipeline|
-              redis.srem("vmpooler__pending__#{pool_name}", new_vmname)
+              pipeline.srem("vmpooler__pending__#{pool_name}", new_vmname)
               expiration_ttl = $config[:redis]['data_ttl'].to_i * 60 * 60
-              redis.expire("vmpooler__vm__#{new_vmname}", expiration_ttl)
+              pipeline.expire("vmpooler__vm__#{new_vmname}", expiration_ttl)
             end
           end
           raise
@@ -462,12 +462,12 @@ module Vmpooler
 
       mutex.synchronize do
         @redis.with_metrics do |redis|
-          redis.pipelined do
+          redis.pipelined do |pipeline|
-            redis.hdel("vmpooler__active__#{pool}", vm)
+            pipeline.hdel("vmpooler__active__#{pool}", vm)
-            redis.hset("vmpooler__vm__#{vm}", 'destroy', Time.now)
+            pipeline.hset("vmpooler__vm__#{vm}", 'destroy', Time.now)
 
             # Auto-expire metadata key
-            redis.expire("vmpooler__vm__#{vm}", ($config[:redis]['data_ttl'].to_i * 60 * 60))
+            pipeline.expire("vmpooler__vm__#{vm}", ($config[:redis]['data_ttl'].to_i * 60 * 60))
           end
 
           start = Time.now
@@ -1204,19 +1204,19 @@ module Vmpooler
               pool_check_response[:destroyed_vms] += 1
               destroy_vm(vm, pool_name, provider)
             rescue StandardError => e
-              redis.pipelined do
+              redis.pipelined do |pipeline|
-                redis.srem("vmpooler__completed__#{pool_name}", vm)
+                pipeline.srem("vmpooler__completed__#{pool_name}", vm)
-                redis.hdel("vmpooler__active__#{pool_name}", vm)
+                pipeline.hdel("vmpooler__active__#{pool_name}", vm)
-                redis.del("vmpooler__vm__#{vm}")
+                pipeline.del("vmpooler__vm__#{vm}")
               end
               $logger.log('d', "[!] [#{pool_name}] _check_pool failed with an error while evaluating completed VMs: #{e}")
             end
           else
             $logger.log('s', "[!] [#{pool_name}] '#{vm}' not found in inventory, removed from 'completed' queue")
-            redis.pipelined do
+            redis.pipelined do |pipeline|
-              redis.srem("vmpooler__completed__#{pool_name}", vm)
+              pipeline.srem("vmpooler__completed__#{pool_name}", vm)
-              redis.hdel("vmpooler__active__#{pool_name}", vm)
+              pipeline.hdel("vmpooler__active__#{pool_name}", vm)
-              redis.del("vmpooler__vm__#{vm}")
+              pipeline.del("vmpooler__vm__#{vm}")
             end
           end
         end
@@ -1432,12 +1432,12 @@ module Vmpooler
       score = redis.zscore('vmpooler__provisioning__request', request_id)
       requested = requested.split(',')
 
-      redis.pipelined do
+      redis.pipelined do |pipeline|
         requested.each do |request|
-          redis.zadd('vmpooler__odcreate__task', Time.now.to_i, "#{request}:#{request_id}")
+          pipeline.zadd('vmpooler__odcreate__task', Time.now.to_i, "#{request}:#{request_id}")
         end
-        redis.zrem('vmpooler__provisioning__request', request_id)
+        pipeline.zrem('vmpooler__provisioning__request', request_id)
-        redis.zadd('vmpooler__provisioning__processing', score, request_id)
+        pipeline.zadd('vmpooler__provisioning__processing', score, request_id)
       end
     end
 
@@ -1467,9 +1467,9 @@ module Vmpooler
             redis.incr('vmpooler__tasks__ondemandclone')
             clone_vm(pool, provider, request_id, pool_alias)
           end
-          redis.pipelined do
+          redis.pipelined do |pipeline|
-            redis.zrem(queue_key, request)
+            pipeline.zrem(queue_key, request)
-            redis.zadd(queue_key, score, "#{pool_alias}:#{pool}:#{remaining_count}:#{request_id}")
+            pipeline.zadd(queue_key, score, "#{pool_alias}:#{pool}:#{remaining_count}:#{request_id}")
           end
         end
       end
@@ -1520,10 +1520,10 @@ module Vmpooler
 
       $logger.log('s', "Ondemand request for '#{request_id}' failed to provision all instances within the configured ttl '#{ondemand_request_ttl}'")
       expiration_ttl = $config[:redis]['data_ttl'].to_i * 60 * 60
-      redis.pipelined do
+      redis.pipelined do |pipeline|
-        redis.zrem('vmpooler__provisioning__processing', request_id)
+        pipeline.zrem('vmpooler__provisioning__processing', request_id)
-        redis.hset("vmpooler__odrequest__#{request_id}", 'status', 'failed')
+        pipeline.hset("vmpooler__odrequest__#{request_id}", 'status', 'failed')
-        redis.expire("vmpooler__odrequest__#{request_id}", expiration_ttl)
+        pipeline.expire("vmpooler__odrequest__#{request_id}", expiration_ttl)
       end
       remove_vms_for_failed_request(request_id, expiration_ttl, redis)
       true
@@ -1533,11 +1533,11 @@ module Vmpooler
       request_hash = redis.hgetall("vmpooler__odrequest__#{request_id}")
       Parsing.get_platform_pool_count(request_hash['requested']) do |platform_alias, pool, _count|
         pools_filled = redis.smembers("vmpooler__#{request_id}__#{platform_alias}__#{pool}")
-        redis.pipelined do
+        redis.pipelined do |pipeline|
           pools_filled&.each do |vm|
-            move_vm_queue(pool, vm, 'running', 'completed', redis, "moved to completed queue. '#{request_id}' could not be filled in time")
+            move_vm_queue(pool, vm, 'running', 'completed', pipeline, "moved to completed queue. '#{request_id}' could not be filled in time")
           end
-          redis.expire("vmpooler__#{request_id}__#{platform_alias}__#{pool}", expiration_ttl)
+          pipeline.expire("vmpooler__#{request_id}__#{platform_alias}__#{pool}", expiration_ttl)
         end
       end
     end