Releases: projectcontour/contour
Contour v1.25.2
We are delighted to present version v1.25.2 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Bumps client-go to v1.26.7. This ensures better compatibility with Kubernetes v1.27 clusters. See this upstream issue for more context on why this change is required. Many thanks to @chrism417 for bringing this to our attention.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.25.2 is tested against Kubernetes 1.25 through 1.27.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contributors
Assets 2
Contour v1.25.1
We are delighted to present version v1.25.1 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.26.4. See the Envoy release notes for more information about the content of the release.
- Update to Go v1.20.6. See the Go release notes for more information.
- Failure to automatically set GOMAXPROCS using the automaxprocs library is no longer fatal. Contour will now simply log the error and continue with the automatic GOMAXPROCS detection ignored.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.25.1 is tested against Kubernetes 1.25 through 1.27.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.24.5
We are delighted to present version v1.24.5 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.25.9. See the Envoy release notes for more information about the content of the release.
- Update to Go v1.19.11. See the Go release notes for more information.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.24.5 is tested against Kubernetes 1.24 through 1.26.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.23.6
We are delighted to present version v1.23.6 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.24.10. See the Envoy release notes for more information about the content of the release including details on the addressed CVEs.
- Update to Go v1.19.11. See the Go release notes for more information.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.23.6 is tested against Kubernetes 1.23 through 1.25.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.25.0
We are delighted to present version v1.25.0 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
A big thank you to everyone who contributed to the release.
Major Changes
IP Filter Support
Contour's HTTPProxy now supports configuring Envoy's RBAC filter for allowing or denying requests by IP.
An HTTPProxy can optionally include one or more IP filter rules, which define CIDR ranges to allow or deny requests based on origin IP. Filters can indicate whether the direct IP should be used or whether a reported IP from PROXY or X-Forwarded-For should be used instead. If the latter, Contour's numTrustedHops setting will be respected when determining the source IP. Filters defined at the VirtualHost level apply to all routes, unless overridden by a route-specific filter.
For more information, see:
Add Tracing Support
Contour now supports exporting tracing data to OpenTelemetry
The Contour configuration file and ContourConfiguration CRD will be extended with a new optional tracing section. This configuration block, if present, will enable tracing and will define the trace properties needed to generate and export trace data.
Contour supports the following configurations
- Custom service name, the default is
contour. - Custom sampling rate, the default is
100. - Custom the maximum length of the request path, the default is
256. - Customize span tags from literal and request headers.
- Customize whether to include the pod's hostname and namespace.
Minor Changes
Add support for Global External Authorization for HTTPProxy.
Contour now supports external authorization for all hosts by setting the config as part of the contourConfig like so:
globalExtAuth:
extensionService: projectcontour-auth/htpasswd
failOpen: false
authPolicy:
context:
header1: value1
header2: value2
responseTimeout: 1sIndividual hosts can also override or opt out of this global configuration.
You can read more about this feature in detail in the guide.
HTTPProxy: Add support for exact path match condition
HttpProxy conditions block now also supports exact path match condition.
HTTPProxy: Internal Redirect support
Contour now supports specifying an internalRedirectPolicy on a Route to handle 3xx redirects internally, that is capturing a configurable 3xx redirect response, synthesizing a new request, sending it to the upstream specified by the new route match, and returning the redirected response as the response to the original request.
HTTPProxy: implement HTTP query parameter matching
Contour now implements HTTP query parameter matching for HTTPProxy resource-based routes. It supports Exact, Prefix, Suffix, Regex and Contains string matching conditions together with the IgnoreCase modifier and also the Present matching condition. For example, the following HTTPProxy will route requests based on the configured condition examples for the given query parameter search:
apiVersion: projectcontour.io/v1
kind: HTTPProxy
metadata:
name: httpproxy-queryparam-matching
spec:
routes:
- conditions:
- queryParam:
# will match e.g. '?search=example' as is
name: search
exact: example
services:
- name: s1
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=prefixthis' or any string value prefixed by `prefix` (case insensitive)
name: search
prefix: PreFix
ignoreCase: true
services:
- name: s2
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=thispostfix' or any string value suffixed by `postfix` (case sensitive)
name: search
suffix: postfix
services:
- name: s3
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=regularexp123' or any string value matching the given regular expression
name: search
regex: ^regular.*
services:
- name: s4
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=somethinginsideanother' or any string value containing the substring 'inside' (case sensitive)
name: search
contains: inside
services:
- name: s5
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=' or any string value given to the named parameter
name: search
present: true
services:
- name: s6
port: 80Allow Disabling Features
The contour serve command takes a new optional flag, --disable-feature, that allows disabling certain features.
The flag is used to disable the informer for a custom resource, effectively making the corresponding CRD optional in the cluster. You can provide the flag multiple times.
Current options include extensionservices and the experimental Gateway API features tlsroutes and grpcroutes.
For example, to disable ExtensionService CRD, use the flag as follows: --disable-feature=extensionservices.
Gateway API: support GRPCRoute
Contour now implements GRPCRoute (https://gateway-api.sigs.k8s.io/api-types/grpcroute/). The "core conformance" parts of the spec are implemented. See https://projectcontour.io/docs/1.25/guides/grpc/#gateway-api-configuration on how to use GRPCRoute.
(#5114, @fangfpeng)
Other Changes
- Add
AllowPrivateNetworktoCORSPolicyfor support Access-Control-Allow-Private-Network. (#5034, @lvyanru8200) - Optimize processing of HTTPProxy, Secret and other objects by avoiding full object comparison. This reduces CPU usage during object updates. (#5064, @tsaarni)
- Gateway API: support the
pathfield on the HTTPRoute RequestRedirect filter. (#5068, @skriss) - Optimized the memory usage when handling Secrets in Kubernetes client informer cache. (#5099, @tsaarni)
- Adds a new gauge metric,
contour_dag_cache_object, to indicate the total number of items that are currently in the DAG cache. (#5109, @izturn) - Gateway API: for routes, replace use of custom
NotImplementedcondition with the upstreamAccepted: falsecondition with reasonUnsupportedValueto match the spec. (#5125, @skriss) %REQ()operator in request/response header policies now properly supports HTTP/2 pseudo-headers, header fallbacks, and truncating header values. (#5130, @sunjayBhatia)- Gateway API: for routes, always set ResolvedRefs condition, even if true to match the spec. (#5131, @izturn)
- Set 502 response if include references another root. (#5157, @liangyuanpeng)
- Update to support Gateway API v0.6.2, which includes updated conformance tests. See release notes here. (#5194, @sunjayBhatia)
- HTTPProxy: support Host header rewrites per-service. (#5195, @fangfpeng)
- Contour now sets
GOMAXPROCSto match the number of CPUs available to the container which results in lower and more stable CPU usage under high loads and where the container and node CPU counts differ significantly.
This is the default behavior but can be overridden by specifyingGOMAXPROCSto a fixed value as an environment variable. (#5211, @rajatvig) - Gateway API: Contour now always sets the Accepted condition on Gateway Listeners. If there is a specific validation error of top-level fields (port, protocol, etc.) the status is set to False, otherwise it is set to True. (#5220, @sunjayBhatia)
- Gateway API: Envoy containers manifests should use value from
envoy.health.portandenvoy.metrics.portif they are defined inContourDeployment.spec.runtimeSettings. (#5233, @Jean-Daniel) - Gateway API: support regex path/header match for HTTPRoute and regex header match for GRPCRoute. (#5239, @fangfpeng)
- Fix HTTPProxy duplicate include detection. If we have multiple distinct includes on the same path but different headers or query parameters, duplicates of any include conditions after the first were not detected. (#5296, @sunjayBhatia)
- Gateway API: support regular expressions in HTTPRoute query param match type. (#5310, @padlar)
- Supported/tested Kubernetes versions are now 1.25, 1.26, 1.27. (#5318, @skriss)
- Updates Envoy to v1.26.1. See the v1.26.0 and v1.26.1 changelogs for details. (#5320, @skriss)
- Updates to Go 1.20.4. See the Go release notes for more information. (#5347, @skriss)
Docs Changes
- Upgrade algolia docsearch to v3 on the docs website (#5129, @pnbrown)
- Updates Steve Kriss as Tech Lead and moves Nick Young to Emeritus Maintainer (#5151, @pnbrown)
- Move to a single set of docs per minor release, e.g. 1.24, 1.23 and 1.22. (#5163, @skriss)
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the [upgrade documentation](...
Contributors
Assets 2
Contour v1.25.0-rc.1
We are delighted to present version v1.25.0-rc.1 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
A big thank you to everyone who contributed to the release.
Please note that this is pre-release software, and as such we do not recommend installing it in production environments.
Feedback and bug reports are welcome!
Major Changes
IP Filter Support
Contour's HTTPProxy now supports configuring Envoy's RBAC filter for allowing or denying requests by IP.
An HTTPProxy can optionally include one or more IP filter rules, which define CIDR ranges to allow or deny requests based on origin IP.
Filters can indicate whether the direct IP should be used or whether a reported IP from PROXY or X-Forwarded-For should be used instead.
If the latter, Contour's numTrustedHops setting will be respected when determining the source IP.
Filters defined at the VirtualHost level apply to all routes, unless overridden by a route-specific filter.
For more information, see:
Add Tracing Support
Contour now supports exporting tracing data to OpenTelemetry
The Contour configuration file and ContourConfiguration CRD will be extended with a new optional tracing section. This configuration block, if present, will enable tracing and will define the trace properties needed to generate and export trace data.
Contour supports the following configurations
- Custom service name, the default is
contour. - Custom sampling rate, the default is
100. - Custom the maximum length of the request path, the default is
256. - Customize span tags from literal and request headers.
- Customize whether to include the pod's hostname and namespace.
Minor Changes
Add support for Global External Authorization for HTTPProxy.
Contour now supports external authorization for all hosts by setting the config as part of the contourConfig like so:
globalExtAuth:
extensionService: projectcontour-auth/htpasswd
failOpen: false
authPolicy:
context:
header1: value1
header2: value2
responseTimeout: 1sIndividual hosts can also override or opt out of this global configuration.
You can read more about this feature in detail in the guide.
HTTPProxy: Add support for exact path match condition
HttpProxy conditions block now also supports exact path match condition.
HTTPProxy: Internal Redirect support
Contour now supports specifying an internalRedirectPolicy on a Route to handle 3xx redirects internally, that is capturing a configurable 3xx redirect response, synthesizing a new request,
sending it to the upstream specified by the new route match,
and returning the redirected response as the response to the original request.
HTTPProxy: implement HTTP query parameter matching
Contour now implements HTTP query parameter matching for HTTPProxy
resource-based routes. It supports Exact, Prefix, Suffix, Regex and
Contains string matching conditions together with the IgnoreCase modifier
and also the Present matching condition.
For example, the following HTTPProxy will route requests based on the configured
condition examples for the given query parameter search:
apiVersion: projectcontour.io/v1
kind: HTTPProxy
metadata:
name: httpproxy-queryparam-matching
spec:
routes:
- conditions:
- queryParam:
# will match e.g. '?search=example' as is
name: search
exact: example
services:
- name: s1
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=prefixthis' or any string value prefixed by `prefix` (case insensitive)
name: search
prefix: PreFix
ignoreCase: true
services:
- name: s2
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=thispostfix' or any string value suffixed by `postfix` (case sensitive)
name: search
suffix: postfix
services:
- name: s3
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=regularexp123' or any string value matching the given regular expression
name: search
regex: ^regular.*
services:
- name: s4
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=somethinginsideanother' or any string value containing the substring 'inside' (case sensitive)
name: search
contains: inside
services:
- name: s5
port: 80
- conditions:
- queryParam:
# will match e.g. '?search=' or any string value given to the named parameter
name: search
present: true
services:
- name: s6
port: 80Allow Disabling Features
The contour serve command takes a new optional flag, --disable-feature, that allows disabling
certain features.
The flag is used to disable the informer for a custom resource, effectively making the corresponding
CRD optional in the cluster. You can provide the flag multiple times.
Current options include extensionservices and the experimental Gateway API features tlsroutes and
grpcroutes.
For example, to disable ExtensionService CRD, use the flag as follows: --disable-feature=extensionservices.
Gateway API: support the GRPCRoute
Contour now implements GRPCRoute (https://gateway-api.sigs.k8s.io/api-types/grpcroute/).
The "core conformance" parts of the spec are implemented.
See https://projectcontour.io/docs/v1.25.0/guides/grpc/#gateway-api-configuration
on how to use GRPCRoute.
(#5114, @fangfpeng)
Other Changes
- Add
AllowPrivateNetworktoCORSPolicyfor support Access-Control-Allow-Private-Network. (#5034, @lvyanru8200) - Optimize processing of HTTPProxy, Secret and other objects by avoiding full object comparison. This reduces CPU usage during object updates. (#5064, @tsaarni)
- Gateway API: support the
pathfield on the HTTPRoute RequestRedirect filter. (#5068, @skriss) - Optimized the memory usage when handling Secrets in Kubernetes client informer cache. (#5099, @tsaarni)
- Adds a new gauge metric,
contour_dag_cache_object, to indicate the total number of items that are currently in the DAG cache. (#5109, @izturn) - Gateway API: for routes, replace use of custom
NotImplementedcondition with the upstreamAccepted: falsecondition with reasonUnsupportedValueto match the spec. (#5125, @skriss) %REQ()operator in request/response header policies now properly supports HTTP/2 pseudo-headers, header fallbacks, and truncating header values. (#5130, @sunjayBhatia)- Gateway API: for routes, always set ResolvedRefs condition, even if true to match the spec. (#5131, @izturn)
- Set 502 response if include references another root. (#5157, @liangyuanpeng)
- Update to support Gateway API v0.6.2, which includes updated conformance tests. See release notes here. (#5194, @sunjayBhatia)
- HTTPProxy: support Host header rewrites per-service. (#5195, @fangfpeng)
- Contour now sets
GOMAXPROCSto match the number of CPUs available to the container which results in lower and more stable CPU usage under high loads and where the container and node CPU counts differ significantly.
This is the default behavior but can be overridden by specifyingGOMAXPROCSto a fixed value as an environment variable. (#5211, @rajatvig) - Gateway API: Contour now always sets the Accepted condition on Gateway Listeners. If there is a specific validation error of top-level fields (port, protocol, etc.) the status is set to False, otherwise it is set to True. (#5220, @sunjayBhatia)
- Gateway API: Envoy containers manifests should use value from
envoy.health.portandenvoy.metrics.portif they are defined inContourDeployment.spec.runtimeSettings. (#5233, @Jean-Daniel) - Gateway API: support regex path/header match for HTTPRoute and regex header match for GRPCRoute. (#5239, @fangfpeng)
- Updates to Go 1.20.3. See the Go release notes for more information. (#5254, @sunjayBhatia)
- Fix HTTPProxy duplicate include detection. If we have multiple distinct includes on the same path but different headers or query parameters, duplicates of any include conditions after the first were not detected. (#5296, @sunjayBhatia)
- Gateway API: support regular expressions in HTTPRoute query param match type. (#5310, @padlar)
- Supported/tested Kubernetes versions are now 1.25, 1.26, 1.27. (#5318, @skriss)
- Updates Envoy to v1.26.1. See the v1.26.0 and v1.26.1 changelogs for details. (#5320, @skriss)
Docs Changes
- Upgrade algolia docsearch to v3 on the docs website (#5129, @pnbrown)
- Updates Steve Kriss as Tech Lead and moves Nick Young to Emeritus Maintainer (#5151, @pnbrown)
- Move to a single set of docs per minor release, e.g. 1.24, 1.23 and 1.22. (#5163, @skriss)
Installing and Upgrading
Th...
Contributors
Assets 2
Contour v1.24.4
We are delighted to present version v1.24.4 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Fix for bug in HTTPProxy duplicate include detection that caused memory usage spikes when root HTTPProxies with a large number of includes using header match conditions are present.
- Update to Envoy v1.25.6. See the Envoy release notes for more information about the content of the release.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.24.4 is tested against Kubernetes 1.24 through 1.26.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.24.3
We are delighted to present version v1.24.3 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.25.4. See the Envoy release notes for more information about the content of the release and details on the addressed CVEs can be found here.
- Update to Go v1.19.8. See the Go release notes for more information.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.24.3 is tested against Kubernetes 1.24 through 1.26.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.23.5
We are delighted to present version v1.23.5 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.24.5. See the Envoy release notes for more information about the content of the release and details on the addressed CVEs can be found here.
- Update to Go v1.19.8. See the Go release notes for more information.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.23.5 is tested against Kubernetes 1.23 through 1.25.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.
Contour v1.22.6
We are delighted to present version v1.22.6 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.
All Changes
- Update to Envoy v1.23.7. See the Envoy release notes for more information about the content of the release and details on the addressed CVEs can be found here.
- Update to Go v1.19.8. See the Go release notes for more information.
Installing and Upgrading
For a fresh install of Contour, consult the getting started documentation.
To upgrade an existing Contour installation, please consult the upgrade documentation.
Compatible Kubernetes Versions
Contour v1.22.6 is tested against Kubernetes 1.22 through 1.24.
Are you a Contour user? We would love to know!
If you're using Contour and want to add your organization to our adopters list, please visit this page. If you prefer to keep your organization name anonymous but still give us feedback into your usage and scenarios for Contour, please post on this GitHub thread.