Question

我的django应用程序在docker容器内使用gunicorn运行。随机地，容器停止响应网络呼叫。容器已启动并正在运行。我已经检查了统计数据的CPU或内存使用情况，它们似乎没问题。我的码头版：

Client:
 Version:      1.13.0
 API version:  1.25
 Go version:   go1.7.3
 Git commit:   49bf474
 Built:        Tue Jan 17 09:50:17 2017
 OS/Arch:      linux/amd64

Server:
 Version:      1.13.0
 API version:  1.25 (minimum version 1.12)
 Go version:   go1.7.3
 Git commit:   49bf474
 Built:        Tue Jan 17 09:50:17 2017
 OS/Arch:      linux/amd64
 Experimental: false

卷曲命令响应：

* Hostname was NOT found in DNS cache
*   Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 8001 (#0)
> GET /api/health/ HTTP/1.1
> User-Agent: curl/7.35.0
> Host: localhost:8001
> Accept: */*
>

未收到上述回复。虽然容器内的ping工作正常。

我的fabfile看起来像这样：

def create_gunicorn_container(tag_name, version, port, network=None):
    docker_options = env.copy()
    docker_options.update({'tag_name': tag_name, 'version': version, 'port': port})
    if network:
        docker_options['network'] = network
        env.sudo(
            'docker run -v %(log_root)s:/ebs1/logs  --name my_app_server -p%(port)s:8001 --network=%(network)s ' \
            '--env-file=%(env_file)s -itd %(DOCKER_REGISTRY)s/%(tag_name)s:%(version)s ' \
            '%(gunicorn_script_path)s' % docker_options)

Docker文件：

# Dockerfile

# FROM directive instructing base image to build upon
FROM python:2-alpine

ARG req_file=requirements.txt
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

COPY requirements /usr/src/app/requirements
COPY requirements.txt /usr/src/app
COPY external_config /usr/src/app/external_config

RUN apk add --update bash \
    && rm -rf /var/cache/apk/* \
    && apk add --no-cache --virtual .build-deps \
    build-base libxslt libxml2 libxslt-dev libxml2-dev  postgresql-dev libffi-dev \
    && pip install -r $req_file \
    && find /usr/local \
        \( -type d -a -name test -o -name tests \) \
        -o \( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
        -exec rm -rf '{}' + \
    && runDeps="$( \
        scanelf --needed --nobanner --recursive /usr/local \
                | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
                | sort -u \
                | xargs -r apk info --installed \
                | sort -u \
    )" \
    && apk add --virtual .rundeps $runDeps \
    && apk del .build-deps \
    && mkdir -p /ebs1/logs \
    && mkdir -p /var/logs/b2b \
    && mkdir -p /usr/src/scripts/

COPY myapp/ /usr/src/app/
COPY scripts /usr/src/app/scripts

VOLUME /usr/src/app/static

EXPOSE 8001

发生这种情况时，我没有看到任何泊坞日志。我为此运行docker logs b2b_app_server --follow。此外，只有在我重新启动docker service本身之后才会修复此问题，直到那时没有为上面的curl返回任何响应。

如果它是一个已知问题，解决方案会很好，否则我应该调查所有其他参数/工具来调试或解决这个问题？

Gunicorn剧本：

from psycogreen.gevent import patch_psycopg

bind = "0.0.0.0:8001"

workers = 4

worker_class = "gevent"
timeout = 7200

loglevel = 'debug'

errorlog = "/ebs1/logs/gunicorn.error.log"
accesslog = "/ebs1/logs/gunicorn.access.log"
access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s"'

proc_name = "myapp"


def post_fork(server, worker):
    # patch psycopg2 for gevent compatibility
    patch_psycopg()

Docker容器停止响应网络调用

0 个答案: