Question

可以使用custom S3 endpoints配置Terraform，似乎localstack可以为S3，SES，Cloudformation和其他少数服务创建本地堆栈。

问题是在Terraform配置中写什么来使用localstack的S3端点？

Answer 1

Terraform没有正式支持＆＃34; AWS-workalike＆＃34;系统，因为它们通常与AWS本身有微妙的怪癖和差异。但是，它是在尽力而为的基础上得到支持的，并且如果localstack能够为Terraform的目的提供足够逼真的S3印象，则可能会有效。

根据localstack文档，默认情况下，S3 API在from collections import defaultdict, deque import heapq def LargestSupersets(setlists): '''Computes, for each item in the input, the largest superset in the same input. setlists: A list of lists, each of which represents a set of items. Items must be hashable. ''' # First, build a table that maps each element in any input setlist to a list of records # of the form (-size of setlist, index of setlist), one for each setlist that contains # the corresponding element element_to_entries = defaultdict(list) for idx, setlist in enumerate(setlists): entry = (-len(setlist), idx) # cheesy way to make an entry that sorts properly -- largest first for element in setlist: element_to_entries[element].append(entry) # Within each entry, sort so that larger items come first, with ties broken arbitrarily by # the set's index for entries in element_to_entries.values(): entries.sort() # Now build up the output by going over each setlist and walking over the entries list for # each element in the setlist. Since the entries list for each element is sorted largest to # smallest, the first entry we find that is in every entry set we pulled will be the largest # element of the input that contains each item in this setlist. We are guaranteed to eventually # find such an element because, at the very least, the item we're iterating on itself is in # each entries list. output = [] for idx, setlist in enumerate(setlists): num_elements = len(setlist) buckets = [element_to_entries[element] for element in setlist] # We implement the search for an item that appears in every list by maintaining a heap and # a queue. We have the invariants that: # 1. The queue contains the n smallest items across all the buckets, in order # 2. The heap contains the smallest item from each bucket that has not already passed through # the queue. smallest_entries_heap = [] smallest_entries_deque = deque([], num_elements) for bucket_idx, bucket in enumerate(buckets): smallest_entries_heap.append((bucket[0], bucket_idx, 0)) heapq.heapify(smallest_entries_heap) while (len(smallest_entries_deque) < num_elements or smallest_entries_deque[0] != smallest_entries_deque[num_elements - 1]): # First extract the next smallest entry in the queue ... (smallest_entry, bucket_idx, element_within_bucket_idx) = heapq.heappop(smallest_entries_heap) smallest_entries_deque.append(smallest_entry) # ... then add the next-smallest item from the bucket that we just removed an element from if element_within_bucket_idx + 1 < len(buckets[bucket_idx]): new_element = buckets[bucket_idx][element_within_bucket_idx + 1] heapq.heappush(smallest_entries_heap, (new_element, bucket_idx, element_within_bucket_idx + 1)) output.append((idx, smallest_entries_deque[0][1])) return output公开，因此以这种方式设置自定义端点可能有效：

http://localhost:4572

根据localstack的功能，您可能需要设置其他一些设置：

provider "aws" { endpoints { s3 = "http://localhost:4572" } }为存储桶和对象使用基于路径的寻址方案。
s3_force_path_style，因为localstack似乎缺少AWS令牌服务的实现。
skip_credentials_validation如果不使用IAM样式的凭据，则阻止Terraform尝试从EC2元数据API获取凭据。

Answer 2

建立@ martin-atkins的答案，这是一个与Localstack一起使用的示例Terraform文件：

provider "aws" {
  region = "us-east-1"
  access_key = "anaccesskey"
  secret_key = "asecretkey"
  skip_credentials_validation = true
  skip_metadata_api_check = true
  s3_force_path_style = true
  endpoints {
    s3 = "http://localhost:4572"
  }
}

resource "aws_s3_bucket" "b" {
  bucket = "my-tf-test-bucket"
  acl    = "public-read"
}

如何将terraform与atlassian / localstack集成？

2 个答案: