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docker-socket-proxy
mirror of https://github.com/Tecnativa/docker-socket-proxy
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Code Issues Releases Wiki Activity

Add more granular access control

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pull/126/head
LifetimeMistake 4 weeks ago
parent 45f7fb01df
commit da08dbb8f3
3 changed files with 63 additions and 38 deletions
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41
Dockerfile
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@ -4,32 +4,45 @@ EXPOSE 2375
ENV ALLOW_RESTARTS=0 \
ALLOW_STOP=0 \
ALLOW_START=0 \
CONTAINERS_READ=0 \
CONTAINERS_WRITE=0 \
EXEC_READ=0 \
EXEC_WRITE=0 \
IMAGES_READ=0 \
IMAGES_WRITE=0 \
NETWORKS_READ=0 \
NETWORKS_WRITE=0 \
SECRETS_READ=0 \
SECRETS_WRITE=0 \
SERVICES_READ=0 \
SERVICES_WRITE=0 \
VOLUMES_READ=0 \
VOLUMES_WRITE=0 \
SWARM_READ=0 \
SWARM_WRITE=0 \
NODES_READ=0 \
NODES_WRITE=0 \
CONFIGS_READ=0 \
CONFIGS_WRITE=0 \
PLUGINS_READ=0 \
PLUGINS_WRITE=0 \
SYSTEM_READ=0 \
SYSTEM_WRITE=0 \
AUTH=0 \
BUILD=0 \
COMMIT=0 \
CONFIGS=0 \
CONTAINERS=0 \
DISABLE_IPV6=0 \
DISTRIBUTION=0 \
EVENTS=1 \
EXEC=0 \
GRPC=0 \
IMAGES=0 \
INFO=0 \
LOG_LEVEL=info \
NETWORKS=0 \
NODES=0 \
PING=1 \
PLUGINS=0 \
POST=0 \
SECRETS=0 \
SERVICES=0 \
SESSION=0 \
SOCKET_PATH=/var/run/docker.sock \
SWARM=0 \
SYSTEM=0 \
TASKS=0 \
VERSION=1 \
VOLUMES=0
VERSION=1
COPY docker-entrypoint.sh /usr/local/bin/
COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg.template
COPY verify.lua /usr/local/etc/haproxy/verify.lua

48
haproxy.cfg
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@ -6,6 +6,7 @@ global
# Turn on stats unix socket
server-state-file /var/lib/haproxy/server-state
lua-load /usr/local/etc/haproxy/verify.lua
defaults
mode http
@ -45,33 +46,32 @@ backend docker-events
frontend dockerfrontend
bind ${BIND_CONFIG}
http-request deny unless METH_GET || { env(POST) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/[a-zA-Z0-9_.-]+/((stop)|(restart)|(kill)) } { env(ALLOW_RESTARTS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/[a-zA-Z0-9_.-]+/start } { env(ALLOW_START) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers/[a-zA-Z0-9_.-]+/stop } { env(ALLOW_STOP) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/auth } { env(AUTH) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/build } { env(BUILD) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/commit } { env(COMMIT) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/configs } { env(CONFIGS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers } { env(CONTAINERS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/distribution } { env(DISTRIBUTION) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/events } { env(EVENTS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/exec } { env(EXEC) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/grpc } { env(GRPC) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/images } { env(IMAGES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/info } { env(INFO) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/networks } { env(NETWORKS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/nodes } { env(NODES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/_ping } { env(PING) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/plugins } { env(PLUGINS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/secrets } { env(SECRETS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/services } { env(SERVICES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/session } { env(SESSION) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/swarm } { env(SWARM) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/system } { env(SYSTEM) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/tasks } { env(TASKS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/version } { env(VERSION) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/volumes } { env(VOLUMES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/containers } { lua.verify_access(CONTAINERS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/exec } { lua.verify_access(EXEC) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/images } { lua.verify_access(IMAGES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/networks } { lua.verify_access(NETWORKS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/secrets } { lua.verify_access(SECRETS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/services } { lua.verify_access(SERVICES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/volumes } { lua.verify_access(VOLUMES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/swarm } { lua.verify_access(SWARM) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/nodes } { lua.verify_access(NODES) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/configs } { lua.verify_access(CONFIGS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/plugins } { lua.verify_access(PLUGINS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/system } { lua.verify_access(SYSTEM) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/auth } { lua.verify_access(AUTH) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/build } { lua.verify_access(BUILD) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/commit } { lua.verify_access(COMMIT) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/distribution } { lua.verify_access(DISTRIBUTION) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/events } { lua.verify_access(EVENTS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/grpc } { lua.verify_access(GRPC) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/info } { lua.verify_access(INFO) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/_ping } { lua.verify_access(PING) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/session } { lua.verify_access(SESSION) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/tasks } { lua.verify_access(TASKS) -m bool }
http-request allow if { path,url_dec -m reg -i ^(/v[\d\.]+)?/version } { lua.verify_access(VERSION) -m bool }
http-request deny
default_backend dockerbackend

12
verify.lua
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@ -0,0 +1,12 @@
core.register_fetches("verify_access", function(txn, api)
-- env(api) check is kept for backwards compatibility
local read_allowed = txn.f:env(api) == "1" or txn.f:env(api .. "_READ") == "1"
-- env(POST) check is kept for backwards compatibility
local write_allowed = txn.f:env(api .. "_WRITE") == "1" or txn.f:env("POST") == "1"
local method = txn.f:method()
local result = ((method == "GET" or method == "HEAD") and read_allowed)
or ((method ~= "GET" and method ~= "HEAD") and write_allowed)
return result
end)
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