| package main | |
| import ( | |
| "fmt" | |
| "github.com/aws/aws-sdk-go/aws" | |
| "github.com/aws/aws-sdk-go/aws/session" | |
| "github.com/aws/aws-sdk-go/service/ssm" | |
| "strings" | |
| ) |
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
| ## Install perf in docker container | |
| ### ubuntu 18.4 | |
| ### kernel 4.14.173-137.229.amzn2.x86_64 | |
| docker exec -it {containerid} sh | |
| wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.14.173.tar.xz && tar -xf ./linux-4.14.173.tar.xz && cd linux-4.14.173/tools/perf/ && apt -y install flex bison && make -C . && make install | |
| ./perf | |
| ./perf list | |
| ./perf bench mem all |
| These are the 4 changes required to generate core dump | |
| 1. Run docker container in privileged mode | |
| 2. Add CoreDumpDirectory /tmp in apache2.conf | |
| 3. Set core pattern | |
| echo '/tmp/core.%h.%e.%t' > /proc/sys/kernel/core_pattern | |
| 4. Set core files to unlimited | |
| ulimit -c unlimited |
| Course url: https://linuxacademy.com/containers/training/course/name/docker-deep-dive-part-1 | |
| ==================== All Docker Command While Learning Docker ========================= | |
| Get a list of all of the Docker commands: | |
| docker -h | |
| ====== Attaching to Container , run in background , name it ========== | |
| Create a container and attach to it: |
| package main | |
| import ( | |
| "encoding/json" | |
| "fmt" | |
| ) | |
| type Queue []int | |
| var n int |
| package main | |
| import ( | |
| "fmt" | |
| "encoding/json" | |
| ) | |
| func maxHeap (input []int) { | |
| l := len(input) | |
| git clone https://github.com/longxinH/xhprof.git ./xhprof | |
| cd xhprof/extension/ | |
| phpize | |
| ./configure --with-php-config=/usr/local/bin/php-config | |
| make | |
| sudo make install |
| FROM golang:1.8.5-stretch | |
| RUN set -ex; \ | |
| apt-get update; \ | |
| apt-get install -y --no-install-recommends \ | |
| autoconf \ | |
| automake \ | |
| bzip2 \ | |
| dpkg-dev \ | |
| file \ |