Question

我按照在SO和不同博客中找到的每个QA建议，在我的开发机器上一切正常，并且在heroku上没有任何作用。

这是我的设置：

DEFAULT_FILE_STORAGE = 'arena.utils.MediaRootS3BotoStorage' # media files
# storage

AWS_ACCESS_KEY_ID = os.environ.get('AWS_ACCESS_KEY_ID')
AWS_SECRET_ACCESS_KEY = os.environ.get('AWS_SECRET_ACCESS_KEY')
AWS_STORAGE_BUCKET_NAME = os.environ.get('AWS_STORAGE_BUCKET_NAME')
AWS_PRELOAD_METADATA = True # necessary to fix manage.py collectstatic command to only upload changed files instead of all files

S3_URL = 'https://%s.s3.amazonaws.com' % AWS_STORAGE_BUCKET_NAME
MEDIA_URL = S3_URL + '/media/'

STATIC_URL = S3_URL + '/static/'

ADMIN_MEDIA_PREFIX = STATIC_URL + 'admin/'


COMPRESS_URL = STATIC_URL
COMPRESS_OFFLINE = True
COMPRESS_STORAGE = 'utils.CachedS3BotoStorage'
STATICFILES_STORAGE = COMPRESS_STORAGE

当我运行collectstatic / compress时，一切正常，我看到文件被收集到S3并放入适当的位置。我看到了清单文件。

加载包含压缩标记的任何页面，显示错误OfflineGenerationError: You have offline compression enabled but key "d2a53169c44dec41ce3ee7da19b2b9d4" is missing from offline manifest.再次运行python manage.py compress无法解决问题。当我检查清单文件时，它确实找不到的密钥。

这里出了什么问题？

我已经检查了问题：

How to configure django-compressor and django-staticfiles with Amazon's S3?

Django Compressor with S3 URL Heroku

Configuring django-compressor with remote storage (django-storage - amazon s3)

Answer 1

在我这边，我有非常相似的配置，我已成功使用压缩机超过2年。

<强> settings.py

COMPRESS_STORAGE = 'MyAwesomeApp.app.CachedS3BotoStorage.CachedS3BotoStorage'

AWS_ACCESS_KEY_ID = '#######'
AWS_SECRET_ACCESS_KEY = '########################+#########+BqoQ'
AWS_STORAGE_BUCKET_NAME = 'myAmazonS3cdn.myawesomewebsite.com'
AWS_S3_SECURE_URLS = False
AWS_QUERYSTRING_AUTH = False

COMPRESS_ROOT = 'MyAwesomeApp/static'
STATIC_ROOT = 'MyAwesomeApp/static/javascript'
COMPRESS_OUTPUT_DIR = 'compressed'
STATICFILES_STORAGE = COMPRESS_STORAGE

STATIC_URL = "http://myAmazonS3cdn.myawesomewebsite.com/"
COMPRESS_URL = STATIC_URL
COMPRESS_ENABLED = True

<强> CachedS3BotoStorage.py

from django.core.files.storage import get_storage_class
from storages.backends.s3boto import S3BotoStorage

from django.core.files.base import File

class CachedS3BotoStorage(S3BotoStorage):
    """
    S3 storage backend that saves the files locally, too.
    """
    def __init__(self, *args, **kwargs):
        super(CachedS3BotoStorage, self).__init__(*args, **kwargs)
        self.local_storage = get_storage_class("compressor.storage.CompressorFileStorage")()

    def save(self, name, content):
        name = super(CachedS3BotoStorage, self).save(name, content)
        self.local_storage._save(name, content)
        return name

我在本地运行 python managep.py compress ，并在我的静态文件目录中生成清单。 Heroku只处理collecstatic并将最新的清单版本发送到我的cdn。

此致

Answer 2

我用一些行完成了上面的解决方案，以解决在Amazon S3中创建许多（倍数）清单_％。json的问题

在setting.py中：

STATICFILES_STORAGE = 'your_package.s3utils.CachedS3BotoStorage'

在s3utils.py中：

from storages.backends.s3boto import S3BotoStorage
from django.core.files.storage import get_storage_class

class CachedS3BotoStorage(S3BotoStorage):
    """
    S3 storage backend that saves the files locally, too.
    """
    location = 'static'

    def __init__(self, *args, **kwargs):
        super(CachedS3BotoStorage, self).__init__(*args, **kwargs)
        self.local_storage = get_storage_class(
            "compressor.storage.CompressorFileStorage")()

    def url(self, name):
        """
        Fix problem images admin Django S3 images
        """
        url = super(CachedS3BotoStorage, self).url(name)
        if name.endswith('/') and not url.endswith('/'):
            url += '/'
        return url

    def save(self, name, content):
        name = super(CachedS3BotoStorage, self).save(name, content)
        self.local_storage._save(name, content)
        return name

    # HERE is secret to dont generating multiple manifest.json and to delete manifest.json in Amazon S3
    def get_available_name(self, name):
        if self.exists(name):
            self.delete(name)
        return name

Answer 3

我找到了一个包含post_compile挂钩的git存储库来解决这个问题。它在Heroku构建Django应用程序后运行压缩（如果你的压缩器设置需要更少，也会安装lessc。）

https://github.com/nigma/heroku-django-cookbook

如何在heroku上设置django-compressor，离线压缩到S3

3 个答案: