# FHS CentOS 6 빌드와 Apache 실행

## 0. 실행 준비

모든 명령은 같은 셸 세션에서 저장소 루트 디렉터리로 이동한 뒤 실행한다.

```bash
cd "$(git rev-parse --show-toplevel)"

RUN_ID="$(date +%Y%m%d%H%M%S)-$$"
FHS_CONTAINER="interactive-fhs-centos6-${RUN_ID}"
APACHE_CONTAINER="interactive-apache-2.4.68-${RUN_ID}"

free_port() {
  local port=$1
  while (echo >/dev/tcp/127.0.0.1/"$port") 2>/dev/null; do
    port=$((port + 1))
  done
  printf '%s\n' "$port"
}

APACHE_PORT="$(free_port 18068)"
```

## 1. CentOS 6 빌드 컨테이너

```bash
podman pull docker.io/library/centos:centos6
podman run -d \
  --name "$FHS_CONTAINER" \
  --volume "$PWD:/workspace:Z" \
  --workdir /workspace/fhs \
  docker.io/library/centos:centos6 \
  sleep infinity
```

## 2. CentOS 6 저장소와 빌드 의존성

CentOS 6 종료 후 저장소를 vault로 변경한다.

```bash
podman exec "$FHS_CONTAINER" cp -p \
  /etc/yum.repos.d/CentOS-Base.repo \
  /etc/yum.repos.d/CentOS-Base.repo.before-vault

centos_base='^#baseurl=.*\$releasever'
centos_vault='baseurl=http://vault.centos.org/6.10'

podman exec "$FHS_CONTAINER" sed -i \
  -e 's|^mirrorlist=|#mirrorlist=|' \
  -e "s|${centos_base}|${centos_vault}|" \
  /etc/yum.repos.d/CentOS-Base.repo
```

```bash
podman exec "$FHS_CONTAINER" yum install -y \
  gcc gcc-c++ make pkgconfig

podman exec "$FHS_CONTAINER" yum install -y \
  boost-devel openssl-devel sqlite-devel openldap-devel

epel_base=http://archives.fedoraproject.org/pub/archive/epel/6

podman exec "$FHS_CONTAINER" yum install -y \
  "${epel_base}/x86_64/epel-release-6-8.noarch.rpm"

epel_old='^#baseurl=.*\$basearch$'
epel_new='baseurl='"${epel_base}"'/$basearch'
podman exec "$FHS_CONTAINER" sed -i \
  -e 's|^mirrorlist=|#mirrorlist=|' \
  -e "s|${epel_old}|${epel_new}|" \
  /etc/yum.repos.d/epel.repo

podman exec "$FHS_CONTAINER" yum install -y libxml++-devel
```

PostgreSQL 9.3 경로와 FHS Makefile에서 사용하는 추가 도구를 준비한다.

```bash
PG93_BASE=http://download.postgresql.org/pub/repos/yum/9.3/redhat/rhel-6-x86_64

podman exec "$FHS_CONTAINER" yum install -y \
  ${PG93_BASE}/postgresql93-9.3.25-1PGDG.rhel6.x86_64.rpm \
  ${PG93_BASE}/postgresql93-libs-9.3.25-1PGDG.rhel6.x86_64.rpm \
  ${PG93_BASE}/postgresql93-devel-9.3.25-1PGDG.rhel6.x86_64.rpm

podman exec "$FHS_CONTAINER" mkdir -p /user/db
podman exec "$FHS_CONTAINER" ln -s /usr/pgsql-9.3 /user/db/pgsql
podman exec "$FHS_CONTAINER" yum install -y libmcrypt-devel bc
```

## 3. FHS 빌드

`podman exec -w`로 FHS 작업 디렉터리를 지정해 구성요소를 빌드한다.

```bash
podman exec -w /workspace/fhs "$FHS_CONTAINER" bash -lc '
  for component in arcmond2 cls csagentd fimngd ftsd sh-opendav; do
    echo "===== BUILD ${component} ====="
    make all -C "${component}"
    echo "===== STATUS ${component} $? ====="
  done
'
```

빌드 결과:

```text
ftsd       성공
arcmond2   실패: 제공된 정적 라이브러리의 __inet_addr, __error 심볼
cls        실패: CentOS 6에 setproctitle 없음
csagentd   실패: ShmDefine.h의 uint64_t 미정의 및 연쇄 컴파일 오류
fimngd     실패: /user/service/httpd/include의 Apache APR 헤더 없음
sh-opendav 실패: Makefile에 all target 없음
```

## 4. 빌드 산출물 확인

```bash
file fhs/ftsd/src/ftsd
file fhs/ftsd/interface/sample/ftsd_test
file fhs/ftsd/lib/libInterCommon.a
```

## 5. Apache 실행 테스트

Apache 최신 버전 2.4.68을 실행하고 HTTP 응답을 확인한다.

### Apache 2.4.68

```bash
podman pull docker.io/library/httpd:2.4.68
podman run -d \
  --name "$APACHE_CONTAINER" \
  -p "${APACHE_PORT}:80" \
  docker.io/library/httpd:2.4.68

podman exec "$APACHE_CONTAINER" httpd -v
curl -sS -D - "http://127.0.0.1:${APACHE_PORT}/" \
  -o /tmp/apache-2.4.68-body
```

검증 결과: `HTTP/1.1 200 OK`, `Server: Apache/2.4.68 (Unix)`.

현재 실행 중인 컨테이너 확인:

```bash
podman ps --filter "name=${FHS_CONTAINER}" \
  --filter "name=${APACHE_CONTAINER}"
```