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k3s/contrib/util/diagnostics.sh

277 lines
6.3 KiB

#!/usr/bin/env bash
# update for posix shell?
set -e
[ $(id -u) -eq 0 ] || exec sudo -E $0 $@
DIAGCMD=${1:-gather-upload-confirm}
DIAGPROG=${DIAGPROG:-k3s}
BUCKET_NAME=${BUCKET_NAME:-"$DIAGPROG-diagnostic-logs"}
bin=/var/lib/rancher/$DIAGPROG/data/current/bin/
if [ -d $bin ]; then
export PATH=$PATH:$bin:$bin/aux
else
for bin in /var/lib/rancher/k3s/data/**/bin/; do
[ -d $bin ] && export PATH=$PATH:$bin:$bin/aux
done
fi
PUBKEY=${PUBKEY:-'-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----'}
gen-uuid() {
uuid=$(uuidgen 2>/dev/null)
[ -z "$uuid" ] && uuid=$(cat /proc/sys/kernel/random/uuid 2>/dev/null)
[ -z "$uuid" ] && uuid=$(od -x /dev/urandom | head -1 | awk '{OFS="-"; srand($6); sub(/./,"4",$5); sub(/./,substr("89ab",rand()*4,1),$6); print $2$3,$4,$5,$6,$7$8$9}')
if [ -z "$uuid" ]; then
echo "Unable to generate UUID" >&2
return 1
fi
tr '[:lower:]' '[:upper:]' <<< "$uuid"
}
echo setup $DIAGUUID
UUID=${UUID:-$(gen-uuid)}
if [ -z "$UUID" ]; then
echo "UUID is not set and could not be created" >&2
exit 1
fi
no-cleanup() {
echo
echo "Skipping cleanup for $DIAGDIR"
}
cleanup() {
exit_code=$?
set +e +x +v
trap - EXIT INT
if [ -n "$DIAGDIR" ] && [ -d "$DIAGDIR" ]; then
rm -rf $DIAGDIR $DIAGDIR.*
fi
exit $exit_code
}
setup_diagdir() {
if [ -z "$DIAGDIR" ]; then
DIAGDIR=$(readlink -m $(mktemp -d ${TMPDIR:-/tmp}/$DIAGPROG-diagnostics-$UUID-XXXXXXXX))
trap cleanup INT
fi
trap no-cleanup EXIT
set +e +x +v
echo "Diagnostics location: $DIAGDIR"
}
remove_empty() {
if [ -f "$1" ] && [ ! -s "$1" ]; then
rm "$1"
fi
}
run_cmd() {
cmd="$@"
cmd=${cmd//-/}
cmd=${cmd// /-}
cmd=${cmd//\//_}
logCmdFile="$LOGDIR/$cmd.cmd.txt"
logOutFile="$LOGDIR/$cmd.txt"
logErrFile="$LOGDIR/$cmd.err.txt"
if [ -f "$logCmdFile" ]; then
echo "Error already ran: $@" >&2
return 1
fi
echo "Gathering command: $@"
echo "$@" >"$logCmdFile"
$@ >"$logOutFile" 2>"$logErrFile"
remove_empty "$logOutFile"
remove_empty "$logErrFile"
return 0
}
copy() {
from=$1
to=${2:-$1}
to=${to//\//_}
to="$LOGDIR/$to"
if [ ! -e "$from" ]; then
echo "Skipping copy, does not exist: $from"
return 1
fi
echo "Copying: $from"
cp --recursive --dereference $from $to
}
setup_logs() {
export LOGDIR=$DIAGDIR/$1
mkdir -p $LOGDIR
echo
echo "Using subdirectory: $1"
}
log_system() {
setup_logs system
copy /etc/os-release
run_cmd sysctl -a
run_cmd uname -a
run_cmd ps uax
run_cmd dmesg
run_cmd id
run_cmd mount
run_cmd df -h
run_cmd ifconfig -a
run_cmd netstat -ln
run_cmd netstat -nr
run_cmd lsof -n -P -p $(pgrep -o $DIAGPROG)
run_cmd iptables -L
run_cmd iptables -S
run_cmd hostname -f
}
log_prog() {
setup_logs $DIAGPROG
run_cmd $DIAGPROG --version
run_cmd $DIAGPROG check-config
for log in /var/log/$DIAGPROG*.log; do
copy $log
done
if command -v journalctl >/dev/null 2>&1; then
for unit in $(journalctl --field _SYSTEMD_UNIT | grep "$DIAGPROG"); do
run_cmd journalctl --unit "$unit" --no-pager
done
fi
copy "/var/lib/rancher/$DIAGPROG/agent/containerd/containerd.log"
# log cert openssl data?
}
log_kube() {
setup_logs kube
copy /var/log/pods # copies all pod logs
run_cmd command -v kubectl
run_cmd kubectl version
run_cmd kubectl config get-contexts
run_cmd kubectl config current-context
run_cmd kubectl cluster-info dump
run_cmd kubectl get namespaces
run_cmd kubectl get nodes
run_cmd kubectl describe nodes
run_cmd kubectl describe pods --all-namespaces
run_cmd kubectl describe services --all-namespaces
run_cmd kubectl describe daemonset --all-namespaces
run_cmd kubectl describe deployments --all-namespaces
run_cmd kubectl describe replicaset --all-namespaces
run_cmd kubectl describe storageclass,pv,pvc
}
contains() {
[ -z "${1##*$2*}" ]
}
gather() {
log_system
log_prog
log_kube
}
confirm() {
local def=${2:-'N'}
local prompt='(y/N)'
if [ "$def" = 'Y' ]; then
prompt='(Y/n)'
fi
echo
read -p "$1 $prompt: " -n 1 input
echo
if [ "$(tr '[:lower:]' '[:upper:]' <<<"$input")" = 'Y' ]; then
return 0
fi
if [ -z "$input" ] && [ "$def" = 'Y' ]; then
return 0
fi
return 1
}
upload() {
echo
echo "Prepare upload of $DIAGDIR"
if contains "$DIAGCMD" confirm && ! confirm "Perform upload?"; then
return 1
fi
trap cleanup EXIT
local salt=${salt:-$(openssl rand -hex 8)}
local key=${key:-$(openssl rand -hex 32)}
local iv=${iv:-$(openssl rand -hex 16)}
local base=$(basename $DIAGDIR)
local dir=$(dirname $DIAGDIR)
local tar=${TMPDIR:-/tmp}/$base.tar.gz
echo
echo "Creating $tar"
tar -c -z -C $dir $base | \
openssl enc -aes-256-cbc -S $salt -K $key -iv $iv -in /dev/stdin -out $DIAGDIR.logs.tar.gz.enc
cat >$DIAGDIR.meta <<EOF
salt=$salt
key=$key
iv=$iv
EOF
if contains "$DIAGCMD" nometa || ( contains "$DIAGCMD" confirm && ! confirm "Include encrypted metadata in upload?" Y ); then
echo
echo "Save secret metadata for log decryption:"
cat $DIAGDIR.meta
else
echo "$PUBKEY" | openssl rsautl -encrypt -inkey /dev/stdin -pubin -in $DIAGDIR.meta -out $DIAGDIR.meta.enc
fi
(cd $dir; tar -c -z -f $tar $base.*.enc)
echo
echo "Uploading $tar"
if curl --upload-file $tar "https://storage.googleapis.com/$BUCKET_NAME/"; then
echo
echo "Saved diagnostics log in cloud storage as: $base"
echo
fi
}
{
setup_diagdir
for cmd in gather upload; do
if contains "$DIAGCMD" $cmd; then
$cmd
else
echo
echo "Skipping $cmd..."
fi
done
}
# record log of above about
exit 0