diff options
Diffstat (limited to 'build/bin/entrypoint')
| -rwxr-xr-x | build/bin/entrypoint | 111 |
1 files changed, 90 insertions, 21 deletions
diff --git a/build/bin/entrypoint b/build/bin/entrypoint index 77084a3..c9646a0 100755 --- a/build/bin/entrypoint +++ b/build/bin/entrypoint @@ -1,32 +1,101 @@ -#!/bin/sh -e +#!/bin/bash +set -e +CNI_VERSION=${CNI_VERSION:-"v0.8.5"} +IMAGE_ARC=${IMAGE_ARC:-"amd64"} + +create_kubeconfig() { + # Make a ovn4nfv.d directory (for our kubeconfig) + # Inspired from t.ly/Xgbbe + mkdir -p $CNI_CONF_DIR/ovn4nfv-k8s.d + OVN4NFV_KUBECONFIG=$CNI_CONF_DIR/ovn4nfv-k8s.d/ovn4nfv-k8s.kubeconfig + SERVICE_ACCOUNT_PATH=/var/run/secrets/kubernetes.io/serviceaccount + KUBE_CA_FILE=${KUBE_CA_FILE:-$SERVICE_ACCOUNT_PATH/ca.crt} + SERVICEACCOUNT_TOKEN=$(cat $SERVICE_ACCOUNT_PATH/token) + SKIP_TLS_VERIFY=${SKIP_TLS_VERIFY:-false} + + # Check if we're running as a k8s pod. + if [ -f "$SERVICE_ACCOUNT_PATH/token" ]; then + # We're running as a k8d pod - expect some variables. + if [ -z ${KUBERNETES_SERVICE_HOST} ]; then + error "KUBERNETES_SERVICE_HOST not set"; exit 1; + fi + if [ -z ${KUBERNETES_SERVICE_PORT} ]; then + error "KUBERNETES_SERVICE_PORT not set"; exit 1; + fi + + if [ "$SKIP_TLS_VERIFY" == "true" ]; then + TLS_CFG="insecure-skip-tls-verify: true" + elif [ -f "$KUBE_CA_FILE" ]; then + TLS_CFG="certificate-authority-data: $(cat $KUBE_CA_FILE | base64 | tr -d '\n')" + fi + + # Write a kubeconfig file for the CNI plugin. Do this + # to skip TLS verification for now. We should eventually support + # writing more complete kubeconfig files. This is only used + # if the provided CNI network config references it. + touch $OVN4NFV_KUBECONFIG + chmod ${KUBECONFIG_MODE:-600} $OVN4NFV_KUBECONFIG + cat > $OVN4NFV_KUBECONFIG <<EOF +# Kubeconfig file for OVN4NFV-K8S CNI plugin. +apiVersion: v1 +kind: Config +clusters: +- name: local + cluster: + server: ${KUBERNETES_SERVICE_PROTOCOL:-https}://[${KUBERNETES_SERVICE_HOST}]:${KUBERNETES_SERVICE_PORT} + $TLS_CFG +users: +- name: ovn4nfv + user: + token: "${SERVICEACCOUNT_TOKEN}" +contexts: +- name: ovn4nfv-context + context: + cluster: local + user: ovn4nfv +current-context: ovn4nfv-context +EOF + else + warn "Doesn't look like we're running in a kubernetes environment (no serviceaccount token)" + fi +} + +install_cni_plugins() { + curl --insecure --compressed -O -L https://github.com/containernetworking/plugins/releases/download/$CNI_VERSION/cni-plugins-linux-$IMAGE_ARC-$CNI_VERSION.tgz + tar -zxvf cni-plugins-linux-$IMAGE_ARC-$CNI_VERSION.tgz -C $CNI_BIN_DIR + rm -rf cni-plugins-linux-$IMAGE_ARC-$CNI_VERSION.tgz +} cmd=${1:-""} case ${cmd} in - "cni") - CNI_BIN_DIR="/host/opt/cni/bin" - OVN4NFV_CONF_DIR="/host/etc/openvswitch" - OVN4NFV_BIN_FILE="/usr/local/bin/ovn4nfvk8s-cni" - OVN4NFV_CONF_FILE="/tmp/ovn4nfv-conf/ovn4nfv_k8s.conf" - cp -f $OVN4NFV_BIN_FILE $CNI_BIN_DIR - cp -f $OVN4NFV_CONF_FILE $OVN4NFV_CONF_DIR - # Sleep forever. - sleep infinity - ;; + "cni") + CNI_BIN_DIR="/host/opt/cni/bin" + OVN4NFV_CONF_DIR="/host/etc/openvswitch" + OVN4NFV_BIN_FILE="/usr/local/bin/ovn4nfvk8s-cni" + OVN4NFV_CONF_FILE="/tmp/ovn4nfv-conf/ovn4nfv_k8s.conf" + OVN4NFV_NET_CONF_FILE="/tmp/ovn4nfv-cni/00-network.conf" + CNI_CONF_DIR="/host/etc/cni/net.d" + + cp -f $OVN4NFV_BIN_FILE $CNI_BIN_DIR + cp -f $OVN4NFV_CONF_FILE $OVN4NFV_CONF_DIR + cp -f $OVN4NFV_NET_CONF_FILE $CNI_CONF_DIR + create_kubeconfig + install_cni_plugins + # Sleep forever. + sleep infinity + ;; "operator") - shift - exec ${OPERATOR} $@ - ;; + shift + exec ${OPERATOR} $@ + ;; "agent") - shift - exec ${AGENT} $@ - ;; - - + shift + exec ${AGENT} $@ + ;; *) - echo "invalid command ${cmd}" - + echo "invalid command ${cmd}" esac |