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目录

问题

解决

问题

如果你想保证自己服务镜像足够小，那就要保证保证基础镜像尽量干净，但是这又会出现另一个问题，启动的容器内经常会遇到工具缺失的问题，需要手动安装。

这不，今天自己就遇到了。在新启动的容器内使用 mongo 命令连接数据库的时候，遇到了如下报错：

Command 'mongo' not found, but can be installed with:

apt install mongodb-clients

类似问题的报错截图如下：

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解决

解决这个问题也非常简单，只需要安装 mongodb 客户端即可。但是需要注意当前系统类型，使用正确的包管理工具，本机安装命令如下：

apt install mongodb-clients

或者

apt-get install mongodb-clients 

执行过程如下：

root@al-bj-boom-hb-backstage-01:~/bag# apt-get install mongodb-clients
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  libboost-filesystem1.71.0 libboost-iostreams1.71.0 libboost-program-options1.71.0 libgoogle-perftools4
  libpcap0.8 libpcrecpp0v5 libsasl2-2 libsasl2-modules libsasl2-modules-db libsnappy1v5 libstemmer0d
  libtcmalloc-minimal4 libunwind8 libyaml-cpp0.6 mongo-tools
Suggested packages:
  libsasl2-modules-gssapi-mit | libsasl2-modules-gssapi-heimdal libsasl2-modules-ldap
  libsasl2-modules-otp libsasl2-modules-sql
The following NEW packages will be installed:
  libboost-filesystem1.71.0 libboost-iostreams1.71.0 libboost-program-options1.71.0 libgoogle-perftools4
  libpcap0.8 libpcrecpp0v5 libsasl2-2 libsasl2-modules libsasl2-modules-db libsnappy1v5 libstemmer0d
  libtcmalloc-minimal4 libunwind8 libyaml-cpp0.6 mongo-tools mongodb-clients
0 upgraded, 16 newly installed, 0 to remove and 19 not upgraded.
Need to get 35.5 MB of archives.
After this operation, 157 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 libpcap0.8 amd64 1.9.1-3 [128 kB]
Get:2 http://archive.ubuntu.com/ubuntu focal/main amd64 libboost-filesystem1.71.0 amd64 1.71.0-6ubuntu6 [242 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal/main amd64 libboost-iostreams1.71.0 amd64 1.71.0-6ubuntu6 [237 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal/main amd64 libboost-program-options1.71.0 amd64 1.71.0-6ubuntu6 [342 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal/main amd64 libtcmalloc-minimal4 amd64 2.7-1ubuntu2 [93.0 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal/main amd64 libunwind8 amd64 1.2.1-9build1 [47.6 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal/main amd64 libgoogle-perftools4 amd64 2.7-1ubuntu2 [195 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal/main amd64 libpcrecpp0v5 amd64 2:8.39-12build1 [15.5 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules-db amd64 2.1.27+dfsg-2 [14.9 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-2 amd64 2.1.27+dfsg-2 [49.3 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal/main amd64 libsasl2-modules amd64 2.1.27+dfsg-2 [49.1 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal/main amd64 libstemmer0d amd64 0+svn585-2 [61.7 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal/main amd64 libyaml-cpp0.6 amd64 0.6.2-4ubuntu1 [124 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal/universe amd64 mongo-tools amd64 3.6.3-0ubuntu1 [12.3 MB]
Get:15 http://archive.ubuntu.com/ubuntu focal/main amd64 libsnappy1v5 amd64 1.1.8-1build1 [16.7 kB]
Get:16 http://archive.ubuntu.com/ubuntu focal/universe amd64 mongodb-clients amd64 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5 [21.6 MB]
Fetched 35.5 MB in 4min 20s (137 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libpcap0.8:amd64.
(Reading database ... 6374 files and directories currently installed.)
Preparing to unpack .../00-libpcap0.8_1.9.1-3_amd64.deb ...
Unpacking libpcap0.8:amd64 (1.9.1-3) ...
Selecting previously unselected package libboost-filesystem1.71.0:amd64.
Preparing to unpack .../01-libboost-filesystem1.71.0_1.71.0-6ubuntu6_amd64.deb ...
Unpacking libboost-filesystem1.71.0:amd64 (1.71.0-6ubuntu6) ...
Selecting previously unselected package libboost-iostreams1.71.0:amd64.
Preparing to unpack .../02-libboost-iostreams1.71.0_1.71.0-6ubuntu6_amd64.deb ...
Unpacking libboost-iostreams1.71.0:amd64 (1.71.0-6ubuntu6) ...
Selecting previously unselected package libboost-program-options1.71.0:amd64.
Preparing to unpack .../03-libboost-program-options1.71.0_1.71.0-6ubuntu6_amd64.deb ...
Unpacking libboost-program-options1.71.0:amd64 (1.71.0-6ubuntu6) ...
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Unpacking libunwind8:amd64 (1.2.1-9build1) ...
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Preparing to unpack .../08-libsasl2-modules-db_2.1.27+dfsg-2_amd64.deb ...
Unpacking libsasl2-modules-db:amd64 (2.1.27+dfsg-2) ...
Selecting previously unselected package libsasl2-2:amd64.
Preparing to unpack .../09-libsasl2-2_2.1.27+dfsg-2_amd64.deb ...
Unpacking libsasl2-2:amd64 (2.1.27+dfsg-2) ...
Selecting previously unselected package libsasl2-modules:amd64.
Preparing to unpack .../10-libsasl2-modules_2.1.27+dfsg-2_amd64.deb ...
Unpacking libsasl2-modules:amd64 (2.1.27+dfsg-2) ...
Selecting previously unselected package libstemmer0d:amd64.
Preparing to unpack .../11-libstemmer0d_0+svn585-2_amd64.deb ...
Unpacking libstemmer0d:amd64 (0+svn585-2) ...
Selecting previously unselected package libyaml-cpp0.6:amd64.
Preparing to unpack .../12-libyaml-cpp0.6_0.6.2-4ubuntu1_amd64.deb ...
Unpacking libyaml-cpp0.6:amd64 (0.6.2-4ubuntu1) ...
Selecting previously unselected package mongo-tools.
Preparing to unpack .../13-mongo-tools_3.6.3-0ubuntu1_amd64.deb ...
Unpacking mongo-tools (3.6.3-0ubuntu1) ...
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Preparing to unpack .../14-libsnappy1v5_1.1.8-1build1_amd64.deb ...
Unpacking libsnappy1v5:amd64 (1.1.8-1build1) ...
Selecting previously unselected package mongodb-clients.
Preparing to unpack .../15-mongodb-clients_1%3a3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5_amd64.deb ...
Unpacking mongodb-clients (1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5) ...
Setting up libpcrecpp0v5:amd64 (2:8.39-12build1) ...
Setting up libsasl2-modules:amd64 (2.1.27+dfsg-2) ...
Setting up libtcmalloc-minimal4:amd64 (2.7-1ubuntu2) ...
Setting up libboost-filesystem1.71.0:amd64 (1.71.0-6ubuntu6) ...
Setting up libunwind8:amd64 (1.2.1-9build1) ...
Setting up libboost-iostreams1.71.0:amd64 (1.71.0-6ubuntu6) ...
Setting up libsnappy1v5:amd64 (1.1.8-1build1) ...
Setting up libsasl2-modules-db:amd64 (2.1.27+dfsg-2) ...
Setting up libpcap0.8:amd64 (1.9.1-3) ...
Setting up libyaml-cpp0.6:amd64 (0.6.2-4ubuntu1) ...
Setting up libsasl2-2:amd64 (2.1.27+dfsg-2) ...
Setting up mongo-tools (3.6.3-0ubuntu1) ...
Setting up libstemmer0d:amd64 (0+svn585-2) ...
Setting up libgoogle-perftools4:amd64 (2.7-1ubuntu2) ...
Setting up libboost-program-options1.71.0:amd64 (1.71.0-6ubuntu6) ...
Setting up mongodb-clients (1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5) ...
Processing triggers for libc-bin (2.31-0ubuntu9.2) ... 

过程截图如下：

​

安装成功后，我们执行刚才的数据库连接命令：

mongo 127.0.0.1:27017 

哈哈，连接成功了。

成功截图如下：

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