Auto Inject

[Temika]

Injectionoccurs at pod creation time. Kill the running pod and verify a new pod is created with the injected sidecar. The original pod has 1/1 READY containers, and the pod with injected sidecar has 2/2 READY containers.

Generally, pod are injected based on the sidecar injection template, configured in the istio-sidecar-injector configmap.Per-pod configuration is available to override these options on individual pods. This is done by adding an istio-proxy containerto your pod. The sidecar injection will treat any configuration defined here as an override to the default injection template.

Additionally, certain fields are configurable by annotations on the pod, although it is recommended to use the above approach to customizing settings. Additional care must be taken for certain annotations:

Pods will, by default, use the sidecar injection template, which is automatically created.This can be overridden by the inject.istio.io/templates annotation.For example, to apply the default template and our customization, you can set inject.istio.io/templates=sidecar,custom.

This document covers how to configure sidecar proxy injection with Cloud Service Meshto enhance network security, reliability, and observability. These functions areabstracted away from the application's primary container and implemented in acommon out-of-process proxy (the sidecar), delivered as a separate container inthe same Pod. This provides theCloud Service Mesh's features without redesigning yourproduction applications to participate in a service mesh.

Automatic sidecar proxy injection (auto-injection) occurs when Cloud Service Meshdetects a namespace label you configure for the workload's Pod. The proxyintercepts all inbound and outbound traffic to the workloads and communicateswith Cloud Service Mesh.

To enable auto-injection, you label your namespaces with thedefault injection labelsif the default tag is set up, or with therevision label to your namespace.The label that you add also depends on whether you deployedmanaged Cloud Service Mesh (with thefleet API or withasmcli), orinstalled the in-cluster control plane. The label is used by the sidecarinjector webhook to associate injected sidecars with a particular control planerevision.

Note: You can substitute istio.io/rev with the istio-injection=enabled label if the default tag is configured. Verify the default tag exists by running istioctl tag list with the istioctl from OUTPUT_DIR.

Apply the revision label to namespaces and remove the istio-injection label(if it exists). In the following command, NAMESPACE isthe name of the namespace where you want to enable auto-injection, andREVISION is the revision label you noted in theprevious step.

You can ignore the message "istio-injection not found" in theoutput. That means that the namespace didn't previously have theistio-injection label, which you should expect in newinstallations of Cloud Service Mesh or new deployments. Because auto-injectionbehavior is undefined when a namespace has both the istio-injectionand the revision label, all kubectl label commands in theCloud Service Mesh documentation explicitly ensure that only one is set.

In the output, select the value under the NAME column is theREVISION label that corresponds to the availablerelease channelfor the Cloud Service Mesh version. Apply this label to your namespaces, andremove the istio-injection label (if it exists).In the following command, replace REVISION with therevision label you noted above, and replaceNAMESPACE with the name of the namespace where youwant to enable auto-injection:

In the following example output from the previous command, notice that theREADY column indicates there are two containers for each of yourworkloads: the primary container and the container for the sidecar proxy.

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EPIPEN and EPIPEN JR Auto-Injectors are used to treat life-threatening, allergic emergencies in peoplewho are at risk for or have a history of serious allergic emergencies. EPIPEN and EPIPEN JR are forimmediate administration by you or your caregiver. They do not take the place of emergency medicalcare. You should get emergency help right away after using your EPIPEN of EPIPEN JR.

EPIPEN (epinephrine injection, USP) 0.3 mg and EPIPEN JR (epinephrine injection, USP) 0.15 mg Auto-Injectors are used to treat allergic emergencies (anaphylaxis). Anaphylaxis can be life threatening andhappen within minutes. If untreated, anaphylaxis can cause death. This allergic emergency can becaused by stinging and biting insects, allergy injections, foods, medicines, exercise, or unknown causes.

Always carry 2 EPIPEN or 2 EPIPEN JR Auto-Injectors with you because sometimes a single dose ofepinephrine may not be enough to treat a serious allergic reaction before seeking medical care.

When you have an allergic emergency (anaphylaxis), use EPIPEN or EPIPEN JR auto-injectors rightaway. Get emergency medical help right away even if you have used the EPIPEN or EPIPEN JR auto-injector.You can use a second EPIPEN or EPIPEN JR auto-injector if symptoms continue or if the firstauto-injector is activated. If you need more than 2 doses for an allergic emergency, they must be givenby a healthcare provider.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-countermedicines, vitamins and herbal supplements. Tell your healthcare provider about all of yourknown allergies. If you have certain medical conditions, or take certain medicines, your condition mayget worse, or you may have longer lasting side effects when you use your EPIPEN or EPIPEN JR auto-injector.

Especially tell your healthcare provider if you take certain asthma medicines. EPIPEN and EPIPEN JRand other medicines may affect the way other medicines work. Other medicines my affect how EPIPENand EPIPEN JR auto-injector works.

EPIPEN or EPIPEN JR auto-injector should be injected into the middle of your outer thigh (upper leg),through clothing if necessary. Do not inject into your veins, buttocks, fingers, toes, hands or feet. It isvery important that you hold the EPIPEN or EPIPEN JR auto-injector down firmly on the middle of theouter thigh (upper leg) for at least 3 full seconds. If you do not hold it in place long enough, theEPIPEN or EPIPEN JR auto-injector might not have time to deliver the correct dose of medicine. If youaccidentally inject EPIPEN or EPIPEN JR auto-injectors into any place other than the middle of your outerthigh, go to the nearest emergency room right away. If you inject a young child, hold their leg firmly inplace before and during the 3 second injection to prevent injuries.

Rarely, patients who have used EPIPEN or EPIPEN JR auto-injectors may get infections at the injectionsite within a few days. Some of these infections can be serious. Call your healthcare professional rightaway if you have any of the following at an injection site: redness that does not go away, swelling,tenderness, or the area feels warm to the touch.

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