通过docker-compose 搭建kong+kong-dashboard 的环境。
因为需要学习使用kong，在本地笔记本上通过docker-compose 搭建kong的临时环境，碰到几个坑：
先报组件版本：
os： ubuntu 18.04LTS
docker-compose 版本：
docker-compose version 1.17.1, build unknown
docker-py version: 2.5.1
CPython version: 2.7.15rc1
OpenSSL version: OpenSSL 1.1.0h 27 Mar 2018
docker 版本：
Client:
Version: 18.06.1-ce
API version: 1.38
Go version: go1.10.4
Git commit: e68fc7a
Built: Fri Oct 19 19:43:14 2018
OS/Arch: linux/amd64
Experimental: false
Server:
Engine:
Version: 18.06.1-ce
API version: 1.38 (minimum version 1.12)
Go version: go1.10.4
Git commit: e68fc7a
Built: Thu Sep 27 02:39:50 2018
OS/Arch: linux/amd64
Experimental: false
其中docker、docker compose 均为apt安装
使用compose搭建过程中，有一下几个小坑：
1、kong起来之后postgres sql 还没起来，解决办法： compose 配置文件中配置 depends_on 关系
2、kong 与postgressql 无法建立链接，网络不通： compose 配置文件中 -link 参数不好使，容器之间无法通信。
解决办法： 增加network段，把容器放在同一个网段内， 相关链接修改为容器名称来访问
3、kong-dashboard 无法建立与kong的8001 端口通信，telnet 检查发现8001 端口已经映射出来，但是连上就断
通过docker exec 进去检查发现 kong 的官方镜像，默认8001 8444 两个管理端口监听的是 127.0.0.1 ，也就是默认
只能”容器“本机访问
解决办法：
docker cp /etc/kong/kong.conf.default 出来，修改 admin listen的ip地址为 0.0.0.0
然后build 一份新的docker 镜像，详见dockerfile
附：
version: "2"
services:
kong-database:
image: postgres:9.5
environment:
- POSTGRES_USER=kong
- POSTGRES_DB=kong
ports:
- "5432:5432"
volumes:
- /var/lib/postgresql/data:/var/lib/postgresql/data
networks:
default:
aliases:
- kong-database
kong:
#image: kong:latest
build : .
environment:
- KONG_DATABASE=postgres
- KONG_PG_HOST=kong-database
- KONG_CASSANDRA_CONTACT_POINTS=kong-database
- KONG_PROXY_ACCESS_LOG=/dev/stdout
- KONG_ADMIN_ACCESS_LOG=/dev/stdout
- KONG_PROXY_ERROR_LOG=/dev/stderr
- KONG_ADMIN_ERROR_LOG=/dev/stderr
command : kong docker-start
ports:
- "8000:8000"
- "8443:8443"
- "8001:8001"
- "8444:8444"
depends_on:
- kong-database
networks:
default:
aliases:
- kong
kong-dashboard:
image: pgbi/kong-dashboard:v2
ports:
- "8080:8080"
links:
- kong
depends_on:
- kong
附dockerfile
from kong:latest
COPY kong.conf.default /etc/kong/kong.conf
附配置：
# -----------------------
# Kong configuration file
# -----------------------
#
# The commented-out settings shown in this file represent the default values.
#
# This file is read when `kong start` or `kong prepare` are used. Kong
# generates the Nginx configuration with the settings specified in this file.
#
# All environment variables prefixed with `KONG_` and capitalized will override
# the settings specified in this file.
# Example:
# `log_level` setting -> `KONG_LOG_LEVEL` env variable
#
# Boolean values can be specified as `on`/`off` or `true`/`false`.
# Lists must be specified as comma-separated strings.
#
# All comments in this file can be removed safely, including the
# commented-out properties.
# You can verify the integrity of your settings with `kong check <conf>`.
#------------------------------------------------------------------------------
# GENERAL
#------------------------------------------------------------------------------
#prefix = /usr/local/kong/ # Working directory. Equivalent to Nginx's
# prefix path, containing temporary files
# and logs.
# Each Kong process must have a separate
# working directory.
#log_level = notice # Log level of the Nginx server. Logs are
# found at <prefix>/logs/error.log.
# Note: see http://nginx.org/en/docs/ngx_core_module.html#error_log for a list
# of accepted values.
#proxy_access_log = logs/access.log # Path for proxy port request access
# logs. Set this value to `off` to
# disable logging proxy requests.
# If this value is a relative path,
# it will be placed under the
# `prefix` location.
#proxy_error_log = logs/error.log # Path for proxy port request error
# logs. Granularity of these logs is
# adjusted by the `log_level`
# directive.
#admin_access_log = logs/admin_access.log # Path for Admin API request access
# logs. Set this value to `off` to
# disable logging Admin API requests.
# If this value is a relative path,
# it will be placed under the
# `prefix` location.
#admin_error_log = logs/error.log # Path for Admin API request error
# logs. Granularity of these logs is
# adjusted by the `log_level`
# directive.
#plugins = bundled # Comma-separated list of plugins this node
# should load. By default, only plugins
# bundled in official distributions are
# loaded via the `bundled` keyword.
#
# Loading a plugin does not enable it by
# default, but only instructs Kong to load its
# source code, and allows to configure the
# plugin via the various related Admin API
# endpoints.
#
# The specified name(s) will be substituted as
# such in the Lua namespace:
# `kong.plugins.{name}.*`.
#
# When the `off` keyword is specified as the
# only value, no plugins will be loaded.
#
# `bundled` and plugin names can be mixed
# together, as the following examples suggest:
#
# - plugins = bundled, custom-auth
# > will load all bundled plugins and
# another plugin `custom-auth`
#
# - plugins = key-auth, custom-auth
# > will only load these two plugins
#
# - plugins = off
# > will not load any plugin
#anonymous_reports = on # Send anonymous usage data such as error
# stack traces to help improve Kong.
#------------------------------------------------------------------------------
# NGINX
#------------------------------------------------------------------------------
#proxy_listen = 0.0.0.0:8000, 0.0.0.0:8443 ssl
# Comma-separated list of addresses and ports on
# which the proxy server should listen.
# The proxy server is the public entrypoint of Kong,
# which proxies traffic from your consumers to your
# backend services. This value accepts IPv4, IPv6, and
# hostnames.
# Some suffixes can be specified for each pair:
# - `ssl` will require that all connections made
# through a particular address/port be made with TLS
# enabled.
# - `http2` will allow for clients to open HTTP/2
# connections to Kong's proxy server.
# - Finally, `proxy_protocol` will enable usage of the
# PROXY protocol for a given address/port.
#
# This value can be set to `off`, thus disabling
# the proxy port for this node, enabling a
# 'control-plane' mode (without traffic proxying
# capabilities) which can configure a cluster of
# nodes connected to the same database.
# Note: see http://nginx.org/en/docs/http/ngx_http_core_module.html#listen for
# a description of the accepted formats for this and other *_listen values.
# Note bis: see https://www.nginx.com/resources/admin-guide/proxy-protocol/
# for more details about the `proxy_protocol` parameter.
admin_listen = 0.0.0.0:8001, 0.0.0.0:8444 ssl
# Comma-separated list of addresses and ports on
# which the Admin interface should listen.
# The Admin interface is the API allowing you to
# configure and manage Kong.
# Access to this interface should be *restricted*
# to Kong administrators *only*. This value accepts
# IPv4, IPv6, and hostnames.
# Some suffixes can be specified for each pair:
# - `ssl` will require that all connections made
# through a particular address/port be made with TLS
# enabled.
# - `http2` will allow for clients to open HTTP/2
# connections to Kong's proxy server.
# - Finally, `proxy_protocol` will enable usage of the
# PROXY protocol for a given address/port.
#
# This value can be set to `off`, thus disabling
# the Admin interface for this node, enabling a
# 'data-plane' mode (without configuration
# capabilities) pulling its configuration changes
# from the database.
#nginx_user = nobody nobody # Defines user and group credentials used by
# worker processes. If group is omitted, a
# group whose name equals that of user is
# used. Ex: [user] [group].
#nginx_worker_processes = auto # Determines the number of worker processes
# spawned by Nginx.
#nginx_daemon = on # Determines wether Nginx will run as a daemon
# or as a foreground process. Mainly useful
# for development or when running Kong inside
# a Docker environment.
#mem_cache_size = 128m # Size of the in-memory cache for database
# entities. The accepted units are `k` and
# `m`, with a minimum recommended value of
# a few MBs.
#ssl_cipher_suite = modern # Defines the TLS ciphers served by Nginx.
# Accepted values are `modern`,
# `intermediate`, `old`, or `custom`.
# Note: see https://wiki.mozilla.org/Security/Server_Side_TLS for detailed
# descriptions of each cipher suite.
#ssl_ciphers = # Defines a custom list of TLS ciphers to be
# served by Nginx. This list must conform to
# the pattern defined by `openssl ciphers`.
# This value is ignored if `ssl_cipher_suite`
# is not `custom`.
#ssl_cert = # The absolute path to the SSL certificate for
# `proxy_listen` values with SSL enabled.
#ssl_cert_key = # The absolute path to the SSL key for
# `proxy_listen` values with SSL enabled.
#client_ssl = off # Determines if Nginx should send client-side
# SSL certificates when proxying requests.
#client_ssl_cert = # If `client_ssl` is enabled, the absolute
# path to the client SSL certificate for the
# `proxy_ssl_certificate` directive. Note that
# this value is statically defined on the
# node, and currently cannot be configured on
# a per-API basis.
#client_ssl_cert_key = # If `client_ssl` is enabled, the absolute
# path to the client SSL key for the
# `proxy_ssl_certificate_key` address. Note
# this value is statically defined on the
# node, and currently cannot be configured on
# a per-API basis.
#admin_ssl_cert = # The absolute path to the SSL certificate for
# `admin_listen` values with SSL enabled.
#admin_ssl_cert_key = # The absolute path to the SSL key for
# `admin_listen` values with SSL enabled.
#upstream_keepalive = 60 # Sets the maximum number of idle keepalive
# connections to upstream servers that are
# preserved in the cache of each worker
# process. When this number is exceeded, the
# least recently used connections are closed.
#headers = server_tokens, latency_tokens
# Specify Kong-specific headers that should
# be injected in responses to the client.
# Acceptable values are:
# - `server_tokens`: inject 'Via' and 'Server'
# headers.
# - `latency_tokens`: inject
# 'X-Kong-Proxy-Latency' and
# 'X-Kong-Upstream-Latency' headers.
# - `X-Kong-<header-name>`: only inject this
# specific the header when applicable.
#
# Example:
# headers = via, latency_tokens
#
# This value can be set to `off`, which
# prevents Kong from injecting any of these
# headers. Note that plugins can still inject
# headers.
#trusted_ips = # Defines trusted IP addresses blocks that are
# known to send correct X-Forwarded-* headers.
# Requests from trusted IPs make Kong forward
# their X-Forwarded-* headers upstream.
# Non-trusted requests make Kong insert its
# own X-Forwarded-* headers.
#
# This property also sets the
# `set_real_ip_from` directive(s) in the Nginx
# configuration. It accepts the same type of
# values (CIDR blocks) but as a
# comma-separated list.
#
# To trust *all* /!\ IPs, set this value to
# `0.0.0.0/0,::/0`.
#
# If the special value `unix:` is specified,
# all UNIX-domain sockets will be trusted.
# Note: see http://nginx.org/en/docs/http/ngx_http_realip_module.html for
# examples of accepted values.
#real_ip_header = X-Real-IP # Defines the request header field whose value
# will be used to replace the client address.
# This value sets the ngx_http_realip_module
# directive of the same name in the Nginx
# configuration.
# If set to `proxy_protocol`, then at least
# one of the `proxy_listen` entries must
# have the `proxy_protocol` flag enabled.
# Note: see http://nginx.org/en/docs/http/ngx_http_realip_module.html#real_ip_header
# for a description of this directive.
#real_ip_recursive = off # This value sets the ngx_http_realip_module
# directive of the same name in the Nginx
# configuration.
# Note: see http://nginx.org/en/docs/http/ngx_http_realip_module.html#real_ip_recursive
# for a description of this directive.
#client_max_body_size = 0 # Defines the maximum request body size allowed
# by requests proxied by Kong, specified in
# the Content-Length request header. If a
# request exceeds this limit, Kong will
# respond with a 413 (Request Entity Too
# Large). Setting this value to 0 disables
# checking the request body size.
# Note: see http://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_size
# for further description of this parameter. Numeric values may be suffixed
# with 'k' or 'm' to denote limits in terms of kilobytes or megabytes.
#client_body_buffer_size = 8k # Defines the buffer size for reading the
# request body. If the client request body is
# larger than this value, the body will be
# buffered to disk. Note that when the body is
# buffered to disk Kong plugins that access or
# manipulate the request body may not work, so
# it is advisable to set this value as high as
# possible (e.g., set it as high as
# `client_max_body_size` to force request
# bodies to be kept in memory). Do note that
# high-concurrency environments will require
# significant memory allocations to process
# many concurrent large request bodies.
# Note: see http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size
# for further description of this parameter. Numeric values may be suffixed
# with 'k' or 'm' to denote limits in terms of kilobytes or megabytes.
#error_default_type = text/plain # Default MIME type to use when the request
# `Accept` header is missing and Nginx
# is returning an error for the request.
# Accepted values are `text/plain`,
# `text/html`, `application/json`, and
# `application/xml`.
#------------------------------------------------------------------------------
# DATASTORE
#------------------------------------------------------------------------------
# Kong will store all of its data (such as APIs, consumers and plugins) in
# either Cassandra or PostgreSQL.
#
# All Kong nodes belonging to the same cluster must connect themselves to the
# same database.
#database = postgres # Determines which of PostgreSQL or Cassandra
# this node will use as its datastore.
# Accepted values are `postgres` and
# `cassandra`.
#pg_host = 127.0.0.1 # The PostgreSQL host to connect to.
#pg_port = 5432 # The port to connect to.
#pg_user = kong # The username to authenticate if required.
#pg_password = # The password to authenticate if required.
#pg_database = kong # The database name to connect to.
#pg_ssl = off # Toggles client-server TLS connections
# between Kong and PostgreSQL.
#pg_ssl_verify = off # Toggles server certificate verification if
# `pg_ssl` is enabled.
# See the `lua_ssl_trusted_certificate`
# setting to specify a certificate authority.
#cassandra_contact_points = 127.0.0.1 # A comma-separated list of contact
# points to your cluster.
#cassandra_port = 9042 # The port on which your nodes are listening
# on. All your nodes and contact points must
# listen on the same port.
#cassandra_keyspace = kong # The keyspace to use in your cluster.
#cassandra_timeout = 5000 # Defines the timeout (in ms), for reading
# and writing.
#cassandra_ssl = off # Toggles client-to-node TLS connections
# between Kong and Cassandra.
#cassandra_ssl_verify = off # Toggles server certificate verification if
# `cassandra_ssl` is enabled.
# See the `lua_ssl_trusted_certificate`
# setting to specify a certificate authority.
#cassandra_username = kong # Username when using the
# `PasswordAuthenticator` scheme.
#cassandra_password = # Password when using the
# `PasswordAuthenticator` scheme.
#cassandra_consistency = ONE # Consistency setting to use when reading/
# writing to the Cassandra cluster.
#cassandra_lb_policy = RoundRobin # Load balancing policy to use when
# distributing queries across your Cassandra
# cluster.
# Accepted values are:
# `RoundRobin`, `RequestRoundRobin`,
# `DCAwareRoundRobin`, and
# `RequestDCAwareRoundRobin`.
# Prefer the later if and only if you are
# using a multi-datacenter cluster.
#cassandra_local_datacenter = # When using the `DCAwareRoundRobin`
# or `RequestDCAwareRoundRobin` load
# balancing policy, you must specify the name
# of the local (closest) datacenter for this
# Kong node.
#cassandra_repl_strategy = SimpleStrategy # When migrating for the first time,
# Kong will use this setting to
# create your keyspace.
# Accepted values are
# `SimpleStrategy` and
# `NetworkTopologyStrategy`.
#cassandra_repl_factor = 1 # When migrating for the first time, Kong
# will create the keyspace with this
# replication factor when using the
# `SimpleStrategy`.
#cassandra_data_centers = dc1:2,dc2:3 # When migrating for the first time,
# will use this setting when using the
# `NetworkTopologyStrategy`.
# The format is a comma-separated list
# made of <dc_name>:<repl_factor>.
#cassandra_schema_consensus_timeout = 10000 # Defines the timeout (in ms) for
# the waiting period to reach a
# schema consensus between your
# Cassandra nodes.
# This value is only used during
# migrations.
#------------------------------------------------------------------------------
# DATASTORE CACHE
#------------------------------------------------------------------------------
# In order to avoid unecessary communication with the datastore, Kong caches
# entities (such as APIs, Consumers, Credentials...) for a configurable period
# of time. It also handles invalidations if such an entity is updated.
#
# This section allows for configuring the behavior of Kong regarding the
# caching of such configuration entities.
#db_update_frequency = 5 # Frequency (in seconds) at which to check for
# updated entities with the datastore.
# When a node creates, updates, or deletes an
# entity via the Admin API, other nodes need
# to wait for the next poll (configured by
# this value) to eventually purge the old
# cached entity and start using the new one.
#db_update_propagation = 0 # Time (in seconds) taken for an entity in the
# datastore to be propagated to replica nodes
# of another datacenter.
# When in a distributed environment such as
# a multi-datacenter Cassandra cluster, this
# value should be the maximum number of
# seconds taken by Cassandra to propagate a
# row to other datacenters.
# When set, this property will increase the
# time taken by Kong to propagate the change
# of an entity.
# Single-datacenter setups or PostgreSQL
# servers should suffer no such delays, and
# this value can be safely set to 0.
#db_cache_ttl = 0 # Time-to-live (in seconds) of an entity from
# the datastore when cached by this node.
# Database misses (no entity) are also cached
# according to this setting.
# If set to 0 (default), such cached entities
# or misses never expire.
#db_resurrect_ttl = 30 # Time (in seconds) for which stale entities
# from the datastore should be resurrected for
# when they cannot be refreshed (e.g., the
# datastore is unreachable). When this TTL
# expires, a new attempt to refresh the stale
# entities will be made.
#------------------------------------------------------------------------------
# DNS RESOLVER
#------------------------------------------------------------------------------
# By default the DNS resolver will use the standard configuration files
# `/etc/hosts` and `/etc/resolv.conf`. The settings in the latter file will be
# overridden by the environment variables `LOCALDOMAIN` and `RES_OPTIONS` if
# they have been set.
#dns_resolver = # Comma separated list of nameservers, each
# entry in `ip[:port]` format to be used by
# Kong. If not specified the nameservers in
# the local `resolv.conf` file will be used.
# Port defaults to 53 if omitted. Accepts
# both IPv4 and IPv6 addresses.
#dns_hostsfile = /etc/hosts # The hosts file to use. This file is read
# once and its content is static in memory.
# To read the file again after modifying it,
# Kong must be reloaded.
#dns_order = LAST,SRV,A,CNAME # The order in which to resolve different
# record types. The `LAST` type means the
# type of the last successful lookup (for the
# specified name). The format is a (case
# insensitive) comma separated list.
#dns_stale_ttl = 4 # Defines, in seconds, how long a record will
# remain in cache past its TTL. This value
# will be used while the new DNS record is
# fetched in the background.
# Stale data will be used from expiry of a
# record until either the refresh query
# completes, or the `dns_stale_ttl` number of
# seconds have passed.
#dns_not_found_ttl = 30 # TTL in seconds for empty DNS responses and
# "(3) name error" responses.
#dns_error_ttl = 1 # TTL in seconds for error responses.
#dns_no_sync = off # If enabled, then upon a cache-miss every
# request will trigger its own dns query.
# When disabled multiple requests for the
# same name/type will be synchronised to a
# single query.
#------------------------------------------------------------------------------
# DEVELOPMENT & MISCELLANEOUS
#------------------------------------------------------------------------------
# Additional settings inherited from lua-nginx-module allowing for more
# flexibility and advanced usage.
#
# See the lua-nginx-module documentation for more informations:
# https://github.com/openresty/lua-nginx-module
#lua_ssl_trusted_certificate = # Absolute path to the certificate
# authority file for Lua cosockets in PEM
# format. This certificate will be the one
# used for verifying Kong's database
# connections, when `pg_ssl_verify` or
# `cassandra_ssl_verify` are enabled.
#lua_ssl_verify_depth = 1 # Sets the verification depth in the server
# certificates chain used by Lua cosockets,
# set by `lua_ssl_trusted_certificate`.
# This includes the certificates configured
# for Kong's database connections.
#lua_package_path = ./?.lua;./?/init.lua; # Sets the Lua module search path
# (LUA_PATH). Useful when developing
# or using custom plugins not stored
# in the default search path.
#lua_package_cpath = # Sets the Lua C module search path
# (LUA_CPATH).
#lua_socket_pool_size = 30 # Specifies the size limit for every cosocket
# connection pool associated with every remote
# server.
