def viewPoolPrices(request, poolid):
pool = get_object_or_404(InstancePool, pk=poolid)
config = pool.config.flatten()
prices = {
instance_type:
get_spot_prices(config.ec2_allowed_regions, config.aws_access_key_id,
config.aws_secret_access_key, instance_type)
for instance_type in config.ec2_instance_types
}
zones = set()
latest_price_by_zone = {}
for instance_type in prices:
for region in prices[instance_type]:
for zone in prices[instance_type][region]:
zones.add(zone)
latest_price_by_zone[zone] = min(
latest_price_by_zone.get(zone, 9999),
prices[instance_type][region][zone][0])
prices = []
for zone in sorted(zones):
prices.append((zone, latest_price_by_zone[zone]))
return render(request, 'pools/prices.html', {'prices': prices})
def get_best_region_zone(self, config):
prices = get_spot_prices(config.ec2_allowed_regions,
config.aws_access_key_id,
config.aws_secret_access_key,
config.ec2_instance_type)
# Calculate median values for all availability zones and best zone/price
best_zone = None
best_region = None
best_median = None
rejected_prices = {}
for region in prices:
for zone in prices[region]:
# Do not consider a zone/region combination that has a current
# price higher than the maximum price we are willing to pay,
# even if the median would end up being lower than our maximum.
if prices[region][zone][0] > config.ec2_max_price:
rejected_prices[zone] = prices[region][zone][0]
continue
median = get_price_median(prices[region][zone])
if best_median == None or best_median > median:
best_median = median
best_zone = zone
best_region = region
return (best_region, best_zone, rejected_prices)
def viewPoolPrices(request, poolid):
pool = get_object_or_404(InstancePool, pk=poolid)
config = pool.config.flatten()
prices = get_spot_prices(config.ec2_allowed_regions, config.aws_access_key_id, config.aws_secret_access_key, config.ec2_instance_type)
zones = []
latest_price_by_zone = {}
for region in prices:
for zone in prices[region]:
zones.append(zone)
latest_price_by_zone[zone] = prices[region][zone][0]
prices = []
for zone in sorted(zones):
prices.append((zone, latest_price_by_zone[zone]))
return render(request, 'pools/prices.html', { 'prices' : prices })
def get_best_region_zone(self, config):
prices = get_spot_prices(config.ec2_allowed_regions, config.aws_access_key_id, config.aws_secret_access_key, config.ec2_instance_type)
# Calculate median values for all availability zones and best zone/price
best_zone = None
best_region = None
best_median = None
rejected_prices = {}
for region in prices:
for zone in prices[region]:
# Do not consider a zone/region combination that has a current
# price higher than the maximum price we are willing to pay,
# even if the median would end up being lower than our maximum.
if prices[region][zone][0] > config.ec2_max_price:
rejected_prices[zone] = prices[region][zone][0]
continue
median = get_price_median(prices[region][zone])
if best_median == None or best_median > median:
best_median = median
best_zone = zone
best_region = region
return (best_region, best_zone, rejected_prices)