Istio 1.23.2 (#88)

* add istio 1.23.2

* change fetch_istio_releases to handle arm64

Author: diogoasouza

Dockerfile

@@ -18,7 +18,7 @@ FROM final
 # Copy binaries and configuration files from builder to micro
 COPY --from=builder /chroot/ /
 
-ENV ISTIO_VERSION 1.22.1
+ENV ISTIO_VERSION 1.23.2
 # Get Istio
 RUN curl -L https://istio.io/downloadIstio | ISTIO_VERSION=${ISTIO_VERSION} sh -
 RUN mv istio-${ISTIO_VERSION}/bin/istioctl /usr/bin && chmod +x /usr/bin/istioctl

README.md

@@ -14,12 +14,7 @@ The current implementation of the `istioctl upgrade` command makes a call to ext
 #### How to upgrade the istio version
 
 1. In the Dockerfile, change the environmnet variable `ENV ISTIO_VERSION` to the version of istio that you would like the installer to support.
-2. Add the same version of istio that you used for `ENV ISTIO_VERSION`to the `istio_version_array` in the fetch_istio_releases.sh script ordering from least to greatest. When doing this step, you also want to double check that the version that was previously used for `ENV ISTIO_VERSION` also exists in the `istio_version_array`. This step ensures upgrades work in airgapped environments.
-
-	In general, the `istio_version_array` must include all istio versions from the release branches of [rancher/charts ](https://github.com/rancher/charts "rancher/charts ") 
-	> Note: The `istio_version_array` does not include rancher-istio chart version, just the version of istio that is supported by the rancher-istio chart.
-
-3. Finally, you need to validate that the create_istio_system.sh and the uninstall_istio_system.sh script commands are still valid. This can be done by checking that the [istioctl commands](https://istio.io/latest/docs/reference/commands/istioctl/ "istioctl commands") have not changed. You should also check the [release notes](https://istio.io/latest/news/ "release notes") for any significant changes to how istioctl is used. If there were changes to the commands, update the create_istio_system.sh  and the uninstall_istio_system.sh scripts accordingly.
+2. Finally, you need to validate that the create_istio_system.sh and the uninstall_istio_system.sh script commands are still valid. This can be done by checking that the [istioctl commands](https://istio.io/latest/docs/reference/commands/istioctl/ "istioctl commands") have not changed. You should also check the [release notes](https://istio.io/latest/news/ "release notes") for any significant changes to how istioctl is used. If there were changes to the commands, update the create_istio_system.sh  and the uninstall_istio_system.sh scripts accordingly.
 
 ## Build
 The istio-installer image is built using drone when a new tag is created and pushed to repository. See drone.yaml for drone configurations.
@@ -141,4 +136,4 @@ installer:
 ```
 12. Click Update
 13. Navigate to Workload >> Pods >> find the istio-installer pod and view logs to see if there are any issues.
-14. If there are issues, then Update usually fails.
+14. If there are issues, then Update usually fails.

scripts/fetch_istio_releases.sh

@@ -13,8 +13,11 @@ fi
 if [ -d "${RELEASE_DIR}" ] ; then
   cd ${RELEASE_DIR}
 
-
-  curl -sOL https://github.com/istio/istio/releases/download/$ISTIO_VERSION/istio-$ISTIO_VERSION-linux-amd64.tar.gz
+  if [$TARGETPLATFORM = "linux/amd64"]; then
+    curl -sOL https://github.com/istio/istio/releases/download/$ISTIO_VERSION/istio-$ISTIO_VERSION-linux-amd64.tar.gz
+  else
+    curl -sOL https://github.com/istio/istio/releases/download/$ISTIO_VERSION/istio-$ISTIO_VERSION-linux-arm64.tar.gz
+  fi
 
   for f in *.tar.gz; do
     if [ -f "$f" ]; then