Respect the k3s master node version when adding a new worker to the k3s cluster #8031
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…the k3s cluster Previously, it was possible to have a kubernetes version mismatch on new worker nodes if a newer version of kubernetes was released prior to upgrading the master nodes to that version. This can sometimes cause cluster instability. This change fetches the lowest node version associated with a master node and then uses that to install k3s on the worker node.
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# History ## 0.36.8 Install/update via the bootstrap script: ```shell wget -NP . https://dokku.com/install/v0.36.8/bootstrap.sh sudo DOKKU_TAG=v0.36.8 bash bootstrap.sh ``` ### Bug Fixes - #8031: @josegonzalez Respect the k3s master node version when adding a new worker to the k3s cluster - #7990: @josegonzalez Correct parsing of the --container-id flag for the enter command ### Documentation - #8013: @othercorey Change command to add SSH key with sudo - #7998: @bakatz Remove incorrect documentation about --envfile flag for config:export ### Dependencies - #8028: @dependabot[bot] chore(deps): bump golang.org/x/crypto from 0.42.0 to 0.43.0 in /plugins/common - #8015: @dependabot[bot] chore(deps): bump github.com/cert-manager/cert-manager from 1.18.2 to 1.19.0 in /plugins/scheduler-k3s - #8029: @dependabot[bot] chore(deps): bump github.com/gofrs/flock from 0.12.1 to 0.13.0 in /plugins/ps - #8011: @dependabot[bot] chore(deps): bump org.apache.maven.plugins:maven-dependency-plugin from 3.8.1 to 3.9.0 in /tests/apps/java - #8012: @dependabot[bot] chore(deps): bump click from 8.1.8 to 8.3.0 in /docs/_build - #8014: @dependabot[bot] chore(deps): bump google.golang.org/grpc from 1.75.1 to 1.76.0 in /tests/apps/gogrpc - #8018: @dependabot[bot] chore(deps): bump github/codeql-action from 3 to 4 - #8019: @dependabot[bot] chore(deps): bump golang from 1.25.1 to 1.25.2 in /tests/apps/zombies-dockerfile-no-tini - #8020: @dependabot[bot] chore(deps): bump golang from 1.25.1 to 1.25.2 in /tests/apps/go-fail-predeploy - #8021: @dependabot[bot] chore(deps): bump python from 3.13.7-bookworm to 3.14.0-bookworm in /tests/apps/dockerfile-release - #8022: @dependabot[bot] chore(deps): bump golang from 1.25.1 to 1.25.2 in /tests/apps/gogrpc - #8024: @dependabot[bot] chore(deps): bump golang from 1.25.1 to 1.25.2 in /tests/apps/zombies-dockerfile-tini - #8023: @dependabot[bot] chore(deps): bump golang from 1.25.1 to 1.25.2 in /tests/apps/go-fail-postdeploy - #8025: @dependabot[bot] chore(deps): bump python from 3.13.7-alpine to 3.14.0-alpine in /docs/_build - #8026: @dependabot[bot] chore(deps): bump github.com/fluxcd/pkg/kustomize from 1.22.0 to 1.23.0 in /plugins/scheduler-k3s - #8027: @dependabot[bot] chore(deps): bump ruby from 3.4.6 to 3.4.7 in /tests/apps/dockerfile-entrypoint - #8030: @dependabot[bot] chore(deps): bump rack from 2.2.19 to 2.2.20 in /tests/apps/ruby - #8016: @dependabot[bot] chore(deps): bump rack from 2.2.18 to 2.2.19 in /tests/apps/ruby - #8009: @dependabot[bot] chore(deps): bump google.golang.org/protobuf from 1.36.9 to 1.36.10 in /tests/apps/gogrpc - #7994: @dependabot[bot] chore(deps): bump timberio/vector from 0.49.0-debian to 0.50.0-debian in /plugins/logs - #8006: @dependabot[bot] chore(deps): bump mkdocs-material from 9.6.20 to 9.6.21 in /docs/_build - #8003: @dependabot[bot] chore(deps): bump traefik from 3.5.2 to 3.5.3 in /plugins/traefik-vhosts - #7996: @dependabot[bot] chore(deps): bump pyyaml from 6.0.2 to 6.0.3 in /docs/_build - #8000: @dependabot[bot] chore(deps): bump markupsafe from 3.0.2 to 3.0.3 in /docs/_build - #8001: @dependabot[bot] chore(deps): bump beautifulsoup4 from 4.13.5 to 4.14.2 in /docs/_build - #8002: @dependabot[bot] chore(deps): bump github.com/go-openapi/jsonpointer from 0.22.0 to 0.22.1 in /plugins/scheduler-k3s - #7995: @dependabot[bot] chore(deps): bump rack from 2.2.17 to 2.2.18 in /tests/apps/ruby - #7992: @dependabot[bot] chore(deps): bump hadolint/hadolint-action from 3.2.0 to 3.3.0 - #7993: @dependabot[bot] chore(deps): bump pyparsing from 3.2.4 to 3.2.5 in /docs/_build - #7987: @dependabot[bot] chore(deps): bump ruby from 3.4.5 to 3.4.6 in /tests/apps/dockerfile-entrypoint - #7983: @dependabot[bot] chore(deps): bump k8s.io/kubernetes from 1.34.0 to 1.34.1 in /plugins/scheduler-k3s - #7984: @dependabot[bot] chore(deps): bump mkdocs-material from 9.6.19 to 9.6.20 in /docs/_build - #7985: @dependabot[bot] chore(deps): bump pyparsing from 3.2.3 to 3.2.4 in /docs/_build ### Other - #8008: @dependabot[bot] chore(deps): bump django from 5.1.12 to 5.1.13 in /tests/apps/dockerfile-release
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Previously, it was possible to have a kubernetes version mismatch on new worker nodes if a newer version of kubernetes was released prior to upgrading the master nodes to that version. This can sometimes cause cluster instability.
This change fetches the lowest node version associated with a master node and then uses that to install k3s on the worker node.