Fixes: #5396
This PR adds a proxy configuration stanza called expose. These flags register
listeners in Connect sidecar proxies to allow requests to specific HTTP paths from outside of the node. This allows services to protect themselves by only
listening on the loopback interface, while still accepting traffic from non
Connect-enabled services.
Under expose there is a boolean checks flag that would automatically expose all
registered HTTP and gRPC check paths.
This stanza also accepts a paths list to expose individual paths. The primary
use case for this functionality would be to expose paths for third parties like
Prometheus or the kubelet.
Listeners for requests to exposed paths are be configured dynamically at run
time. Any time a proxy, or check can be registered, a listener can also be
created.
In this initial implementation requests to these paths are not
authenticated/encrypted.
This fixes pathological cases where the write throughput and snapshot size are both so large that more than 10k log entries are written in the time it takes to restore the snapshot from disk. In this case followers that restart can never catch up with leader replication again and enter a loop of constantly downloading a full snapshot and restoring it only to find that snapshot is already out of date and the leader has truncated its logs so a new snapshot is sent etc.
In general if you need to adjust this, you are probably abusing Consul for purposes outside its design envelope and should reconsider your usage to reduce data size and/or write volume.
* website: link to 1.6.0 beta in downloads page
* website: reorganize intention replication/ca federation
* website: remove announcement bar
* Update website/source/docs/connect/connect-internals.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* website: update homepage and service mesh page
Aligning messaging to current product.
* website: fix link TODOs
* Add Mesh Gateway to mesh page, update use case wording
* Add ui-content-path flag
* tests complete, regex validator on string, index.html updated
* cleaning up debugging stuff
* ui: Enable ember environment configuration to be set via the go binary at runtime (#5934)
* ui: Only inject {{.ContentPath}} if we are makeing a prod build...
...otherwise we just use the current rootURL
This gets injected into a <base /> node which solves the assets path
problem but not the ember problem
* ui: Pull out the <base href=""> value and inject it into ember env
See previous commit:
The <base href=""> value is 'sometimes' injected from go at index
serve time. We pass this value down to ember by overwriting the ember
config that is injected via a <meta> tag. This has to be done before
ember bootup.
Sometimes (during testing and development, basically not production)
this is injected with the already existing value, in which case this
essentially changes nothing.
The code here is slightly abstracted away from our specific usage to
make it easier for anyone else to use, and also make sure we can cope
with using this same method to pass variables down from the CLI through
to ember in the future.
* ui: We can't use <base /> move everything to javascript (#5941)
Unfortuantely we can't seem to be able to use <base> and rootURL
together as URL paths will get doubled up (`ui/ui/`).
This moves all the things that we need to interpolate with .ContentPath
to the `startup` javascript so we can conditionally print out
`{{.ContentPath}}` in lots of places (now we can't use base)
* fixed when we serve index.html
* ui: For writing a ContentPath, we also need to cope with testing... (#5945)
...and potentially more environments
Testing has more additional things in a separate index.html in `tests/`
This make the entire thing a little saner and uses just javascriopt
template literals instead of a pseudo handbrake synatx for our
templating of these files.
Intead of just templating the entire file this way, we still only
template `{{content-for 'head'}}` and `{{content-for 'body'}}`
in this way to ensure we support other plugins/addons
* build: Loosen up the regex for retrieving the CONSUL_VERSION (#5946)
* build: Loosen up the regex for retrieving the CONSUL_VERSION
1. Previously the `sed` replacement was searching for the CONSUL_VERSION
comment at the start of a line, it no longer does this to allow for
indentation.
2. Both `grep` and `sed` where looking for the omment at the end of the
line. We've removed this restriction here. We don't need to remove it
right now, but if we ever put the comment followed by something here the
searching would break.
3. Added `xargs` for trimming the resulting version string. We aren't
using this already in the rest of the scripts, but we are pretty sure
this is available on most systems.
* ui: Fix erroneous variable, and also force an ember cache clean on build
1. We referenced a variable incorrectly here, this fixes that.
2. We also made sure that every `make` target clears ember's `tmp` cache
to ensure that its not using any caches that have since been edited
everytime we call a `make` target.
* added docs, fixed encoding
* fixed go fmt
* Update agent/config/config.go
Co-Authored-By: R.B. Boyer <public@richardboyer.net>
* Completed Suggestions
* run gofmt on http.go
* fix testsanitize
* fix fullconfig/hcl by setting correct 'want'
* ran gofmt on agent/config/runtime_test.go
* Update website/source/docs/agent/options.html.md
Co-Authored-By: Hans Hasselberg <me@hans.io>
* Update website/source/docs/agent/options.html.md
Co-Authored-By: kaitlincarter-hc <43049322+kaitlincarter-hc@users.noreply.github.com>
* remove contentpath from redirectFS struct
* Support for maximum size for Output of checks
This PR allows users to limit the size of output produced by checks at the agent
and check level.
When set at the agent level, it will limit the output for all checks monitored
by the agent.
When set at the check level, it can override the agent max for a specific check but
only if it is lower than the agent max.
Default value is 4k, and input must be at least 1.
* clarify possibilities for centralized proxy configuration
* add line breaks to config entries file
* add info about centralized config to built in proxy doc
* mondify connect landing page to help with navigation
* move internals details to its own page
* link fixes and shortening text on main page
* put built-in proxy options on its own page
* add configuration details for connect
* clarify security title and add observability page
* reorganize menu
* remove observability from configuration section
* Update website/source/docs/connect/configuration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/connect/index.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/agent/config_entries.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/connect/configuration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* rename connect section to include service mesh
* reorganize sections per suggestions from paul
* add configuration edits from paul
* add internals edits from paul
* add observability edits from paul
* reorganize pages and menu
* Update website/source/docs/connect/configuration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* menu corrections and edits
* incorporate some of pauls comments
* incorporate more of pauls comments
* Update website/source/docs/connect/configuration.html.md
Co-Authored-By: kaitlincarter-hc <43049322+kaitlincarter-hc@users.noreply.github.com>
* Update website/source/docs/connect/index.html.md
Co-Authored-By: kaitlincarter-hc <43049322+kaitlincarter-hc@users.noreply.github.com>
* Update website/source/docs/connect/index.html.md
Co-Authored-By: kaitlincarter-hc <43049322+kaitlincarter-hc@users.noreply.github.com>
* Update website/source/docs/connect/registration.html.md
Co-Authored-By: kaitlincarter-hc <43049322+kaitlincarter-hc@users.noreply.github.com>
* incorporate kaitlin and pavanni feedback
* add redirect
* fix conflicts in index file
* Resolve conflicts in index file
* correct links for new organization
* Update website/source/docs/connect/proxies.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/connect/registration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/connect/registration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* Update website/source/docs/connect/registration.html.md
Co-Authored-By: Paul Banks <banks@banksco.de>
* add title to service registration page
Reference: https://github.com/hashicorp/consul/issues/4090
Examples covering a variety of potential use cases. Verified via `sockaddr eval` and `console agent -bind` on a test machine:
```console
# Baseline
$ sockaddr eval 'GetAllInterfaces'
[127.0.0.1/8 {1 65536 lo up|loopback} ::1 {1 65536 lo up|loopback} 10.0.0.10/8 {2 1500 eth0 b8:27:eb:7b:36:95 up|broadcast|multicast} fe80::12dc:5e4d:8ff8:2d96/64 {2 1500 eth0 b8:27:eb:7b:36:95 up|broadcast|multicast} 192.168.1.10/24 {3 1500 wlan0 b8:27:eb:2e:63:c0 up|broadcast|multicast} fe80::b6dc:5758:c306:b15b/64 {3 1500 wlan0 b8:27:eb:2e:63:c0 up|broadcast|multicast}]
# Using address within a specific CIDR
$ sockaddr eval 'GetPrivateInterfaces | include "network" "10.0.0.0/8" | attr "address"'
10.0.0.10
# Using a static network interface name
$ sockaddr eval 'GetInterfaceIP "eth0"'
10.0.0.10
# Using regular expression matching for network interface name that is forwardable and up
$ sockaddr eval 'GetAllInterfaces | include "name" "^eth" | include "flags" "forwardable|up" | attr "address"'
10.0.0.10
```
* Add some config entry docs
* Update website/source/docs/agent/config_entries.html.md
Co-Authored-By: mkeeler <mkeeler@users.noreply.github.com>
* Update website/source/docs/agent/config_entries.html.md
Co-Authored-By: mkeeler <mkeeler@users.noreply.github.com>
* Get rid of double negative
* Some incremental updates
* Update the config list docs to not point to service-default related things.
* A few more doc updates to get rid of some service-defaults specific linking info in the cli docs
* In progress update
* Update website/source/docs/agent/config_entries.html.md
Co-Authored-By: mkeeler <mkeeler@users.noreply.github.com>
* Reword bootstrap section
* Update example proxy-defaults config
* Finish up the examples section for managing config entries with the CLI
* Update website/source/docs/agent/config_entries.html.md
Co-Authored-By: mkeeler <mkeeler@users.noreply.github.com>
* Use $ for shell command start
* Make it very clear that the normal way to manage things is via the API/CLI
* Update website/source/docs/agent/options.html.md
Co-Authored-By: mkeeler <mkeeler@users.noreply.github.com>
* Add api docs for the config entry endpoints
* Add enable_central_service_config field to agent docs
* Add docs for config entry CLI operations
* Fix wording and links in config entry docs
* Add links to the central service config option
* Update the central service config setting description.
* starting broken link fixes
* Updating the other links for ACLs
* Updating the rest of the links
* fixing acl required links.
* update a bunch of other links
* updated a couple more broken links based on Alvins checker
* removed the extra s
* Docs: Remove default_policy From Code Example
It is not needed according to:
https://www.consul.io/docs/agent/acl-system.html#configuring-acls
* Docs: Cleanup Commands And Their Output On ACL Guide Page
Remove extra spaces and newlines
Ensure rules match input rules
* Docs: Remove Incomplete "Added In Version" Statement
Version added is specified on parent option
* Docs: Fix Broken Links
* Docs: Minor Sentence Tweaks
This PR introduces reloading tls configuration. Consul will now be able to reload the TLS configuration which previously required a restart. It is not yet possible to turn TLS ON or OFF with these changes. Only when TLS is already turned on, the configuration can be reloaded. Most importantly the certificates and CAs.
* Fix race condition in DNS when using cache
The healty node filtering was modifying the result from the cache, which
caused a crash when multiple queries were made to the same service
simultaneously.
We now copy the node slice before filtering to ensure we do not modify
the data stored in the cache.
* Fix wording in dns cache config doc
s/dns_max_age/cache_max_age/
This PR adds two features which will be useful for operators when ACLs are in use.
1. Tokens set in configuration files are now reloadable.
2. If `acl.enable_token_persistence` is set to `true` in the configuration, tokens set via the `v1/agent/token` endpoint are now persisted to disk and loaded when the agent starts (or during configuration reload)
Note that token persistence is opt-in so our users who do not want tokens on the local disk will see no change.
Some other secondary changes:
* Refactored a bunch of places where the replication token is retrieved from the token store. This token isn't just for replicating ACLs and now it is named accordingly.
* Allowed better paths in the `v1/agent/token/` API. Instead of paths like: `v1/agent/token/acl_replication_token` the path can now be just `v1/agent/token/replication`. The old paths remain to be valid.
* Added a couple new API functions to set tokens via the new paths. Deprecated the old ones and pointed to the new names. The names are also generally better and don't imply that what you are setting is for ACLs but rather are setting ACL tokens. There is a minor semantic difference there especially for the replication token as again, its no longer used only for ACL token/policy replication. The new functions will detect 404s and fallback to using the older token paths when talking to pre-1.4.3 agents.
* Docs updated to reflect the API additions and to show using the new endpoints.
* Updated the ACL CLI set-agent-tokens command to use the non-deprecated APIs.
Adds two new configuration parameters "dns_config.use_cache" and
"dns_config.cache_max_age" controlling how DNS requests use the agent
cache when querying servers.
* Support rate limiting and concurrency limiting CSR requests on servers; handle CA rotations gracefully with jitter and backoff-on-rate-limit in client
* Add CSR rate limiting docs
* Fix config naming and add tests for new CA configs
